Audiovisual Core List of Terms

Audiovisual Core List of Terms

Title
Audiovisual Core List of Terms
Date de publication de la dernière mise à jour
2023-09-05
Date de création
2013-10-23
Fait partie du standard TDWG
http://www.tdwg.org/standards/638
Cette version
http://rs.tdwg.org/ac/doc/termlist/2023-09-05
Dernière version
http://rs.tdwg.org/ac/doc/termlist/
Version précédente
Previous version
http://rs.tdwg.org/ac/doc/termlist/2023-02-24
Abstract
The Audiovisual Core is a set of vocabularies designed to represent metadata for biodiversity multimedia resources and collections. It aims to represent information that will help to determine whether a particular resource or collection will be fit for some particular biodiversity science application before acquiring the media. Among others, the vocabularies address such concerns as the management of the media and collections, descriptions of their content, their taxonomic, geographic, and temporal coverage, and the appropriate ways to retrieve, attribute and reproduce them. This document contains a list of attributes of each Audiovisual Core term, including a documentation name, a specified URI, a recommended English label for user interfaces, a definition, and some ancillary notes. This document contains normative content that may not be changed without due process.
Contributeurs
Robert A. Morris (University of Massachusetts at Boston, USA), Gregor Hagedorn (JKI, Federal Research Institute for Cultivated Plants, Berlin, Germany), Annette Olson (American Association for the Advancement of Science), Steve Baskauf (Vanderbilt University, Nashville, TN, USA), Vijay Barve, Mihail Carausu (Danish Biodiversity Information Facility (DanBIF), Copenhagen, Denmark), Vishwas Chavan (Global Biodiversity Information Facility, Copenhagen, Denmark), José Cuadra, Chris Freeland (Missouri Botanical Garden, St. Louis, USA), Patrick Leary, Dimitry Mozzherin (Encyclopedia of Life, Woods Hole, USA), Greg Riccardi (Florida State University, Tallahassee, USA), Ivan Teage, Dan Stowell (Queen Mary University of London), Edward Baker (Natural History Museum, London), Richard Pyle (Bernice P. Bishop Museum, Honolulu, HI, USA), Steve Baskauf (Vanderbilt University, Nashville, TN, USA, review manager)

Créateur : GBIF/TDWG Multimedia Resources Task Group and Audiovisual Core Maintenance Group

Citation : GBIF/TDWG Multimedia Resources Task Group and Audiovisual Core Maintenance Group. 2023. Audiovisual Core List of Terms. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/ac/doc/termlist/2023-09-05

1 Introduction

There are a number of documents included in the Audiovisual Core Standard. This document provides details about the terms included in the 2023-09-05 version of the Audiovisual Core vocabulary. The Audiovisual Core Introduction document provides a brief introduction to the Audiovisual Core Standard. For information about the structure of Audiovisual Core, see the Audiovisual Core Structure document. For a more detailed guide to the use of Audiovisual Core, see the Audiovisual Core Guide document.

1.1 Statut du contenu de ce document

Sections 1.3 through 5 are normative, except for Table 1. In Section 7 and its subparts, the values of the Normative URI, Definition, Required, and Repeatable are normative. The value of Usage (if it exists for a given term) is normative in that it specifies how a borrowed term should be used as part of Audiovisual Core. The values of Term Name is non-normative, although one can expect that the namespace abbreviation prefix is one commonly used for the term namespace. Labels and the values of all other properties (such as notes) are non-normative.

1.2 Mots clés RFC 2119

Les mots clés “MUST/DOIT”, “MUST NOT/NE DOIT PAS”, “REQUIRED/OBLIGATOIRE”, “SHALL/DEVRA”, “SHALL NOT/NE DEVRA PAS”, “SHOULD/DEVRAIT”, “SHOULD NOT/NE DEVRAIT PAS”, “RECOMMENDED/RECOMMANDÉ”, “MAY/POURRAIT”, et “OPTIONAL/OPTIONNEL” dans ce document doivent être interprétés comme défini dans les références BCP 14 [RFC 2119] et [RFC 8174]] uniquement lorsqu’ils apparaissent en majuscules, comme ci-dessus.

1.3 Categories of terms

An Audiovisual Core (AC) record is a description of a multimedia resource using the AC vocabularies. Three kinds of terms are specified by this document: those terms which describe representation-independent aspects of the media, those which describe representation-dependent aspects, and those that designate specified parts of the media item. Most terms are representation-independent, referring to an “abstract multimedia resource”. One such term, ac:hasServiceAccessPoint, refers to or contains representation-dependent service access point metadata describing a digital representation of the abstract multimedia resource (an instance of the ac:ServiceAccessPoint class). These metadata describe such things as a web address at which a digital representation can be retrieved, and the format, extent, or licenses that describe a particular such representation. A multimedia resource may provide several access points for different representations (e.g., different resolutions). The resource may also be linked to one or more Regions of Interest (ROI) that define parts within the media item (instances of the ac:RegionOfInterest class).

2 Borrowed Vocabulary

When terms are borrowed from other vocabularies, AC uses the URIs, common abbreviations, and namespace prefixes in use in those vocabularies. The URIs are normative, but abbreviations and namespace prefixes have no impact except as an aid to reading the documentation.

Table 1. Vocabularies from which terms have been borrowed (non-normative)

Note: URIs for terms in most of these namespaces do not dereference to anything. The authoritative documentation can be obtained by clicking on the vocabulary names in the table.

Vocabulaire Abbreviation Namespaces and abbreviations
Darwin Core DwC dwc: = http://rs.tdwg.org/dwc/terms/
Dublin Core DC dc: = http://purl.org/dc/elements/1.1/, dcterms: = http://purl.org/dc/terms/
Adobe XMP Core Properties XMP xmp: = http://ns.adobe.com/xap/1.0/, xmpRights: = http://ns.adobe.com/xap/1.0/rights/
Adobe XMP Additional Properties XMP photoshop: = http://ns.adobe.com/photoshop/1.0/
International Press and Telecommunications Council Photo Metadata Standard,Extension Schema 1.1 IPTC Iptc4xmpExt: = http://iptc.org/std/Iptc4xmpExt/2008-02-29/
Camera and Imaging Products Association Exchangeable Image File Format EXIF exif: = http://ns.adobe.com/exif/1.0/
Music Ontology MO mo: = http://purl.org/ontology/mo/
TDWG Natural Collection Description LSID Ontology (referenced in metadata, but no terms borrowed) NCD ncd: = http://rs.tdwg.org/ontology/voc/Collection#

3 Namespaces, Prefixes and Term Names

The namespace of terms borrowed from other vocabularies is that of the original. The namespace of de novo AC terms is http://rs.tdwg.org/ac/terms/. In the table of terms, each term entry has a row with the term name. This term name is generally an “unqualified name” preceded by a widely accepted prefix designating an abbreviation for the namespace It is RECOMMENDED that implementers who need a namespace prefix for the AC namespace use ac. In this web document, hovering over a term in the Index By Term Name list below will reveal a complete URL that can be used in other web documents to link to this document’s treatment of that term, even if it is from a borrowed vocabulary. It is very important to note that some vocabularies, e.g those of the Dublin Core Metadata Initiative (DCMI), provide versions of the same term in two different namespaces, one providing for string values and one providing for URIs, even where that separation is simply a recommendation, not a mandate. See this DCMI wiki entry on this topic. For vocabularies where such a practice is in place, we often follow it and signal a reference in the Notes of our term descriptions to the sister version of the term. An example is the pair dc:type and dcterms:type. When such a pair allows repeated instances (e.g. as for dc:source and dcterms:source), particular care may be required in some implementations of AC, because some implementations may not provide enough structure to clearly state the association between the members of a pair in the case of multiple values of each. This is a special case of the issue treated in the normative material on Multiplicity and Cardinality in the Audiovisual Core Structure document.

4 Layers

(The Audiovisual Core layer property has been deprecated as of 2020-01-27)

5 Literal- vs. URI-valued Terms

Some terms have two versions, one expecting a string literal value and the other a URI. In these circumstances, the version expecting a string is named with the suffix “Literal”, e.g. ac:metadataLanguageLiteral. In such cases, both forms MAY be provided, but care should be taken to ensure that the uses reflect the same intent. In case of ambiguity, the URI version prevails. All terms, including those whether or not with a specific “Literal” suffix, specify in their definition whether the required values are strings or URIs.

6 Vocabulary Indices (non-normative)

6.1 Index par Noms des Termes

(see_also 6.2 Index par Labels)

classes

ac:RegionOfInterest | ac:ServiceAccessPoint

Management Vocabulary

dcterms:available | ac:commenter | ac:commenterLiteral | ac:comments | ac:hasServiceAccessPoint | dcterms:identifier | xmp:MetadataDate | ac:metadataLanguage | ac:metadataLanguageLiteral | dcterms:modified | ac:providerManagedID | xmp:Rating | ac:reviewer | ac:reviewerComments | ac:reviewerLiteral | ac:subtype | ac:subtypeLiteral | dcterms:title | dc:type | dcterms:type

Attribution Vocabulary

ac:attributionLinkURL | ac:attributionLogoURL | photoshop:Credit | ac:fundingAttribution | ac:licenseLogoURL | xmpRights:Owner | dcterms:rights | dc:rights | dc:source | dcterms:source | xmpRights:UsageTerms | xmpRights:WebStatement

Agents Vocabulary

dc:creator | dcterms:creator | ac:metadataCreator | ac:metadataCreatorLiteral | ac:metadataProvider | ac:metadataProviderLiteral | ac:provider | ac:providerLiteral

Content Coverage Vocabulary

ac:caption | Iptc4xmpExt:CVterm | dcterms:description | ac:freqHigh | ac:freqLow | dc:language | dcterms:language | ac:physicalSetting | ac:subjectCategoryVocabulary | ac:tag

Geography Vocabulary

Iptc4xmpExt:City | dwc:continent | dwc:coordinatePrecision | dwc:coordinateUncertaintyInMeters | dwc:country | dwc:countryCode | Iptc4xmpExt:CountryCode | Iptc4xmpExt:CountryName | dwc:county | dwc:decimalLatitude | dwc:decimalLongitude | dwc:footprintSpatialFit | dwc:footprintSRS | dwc:footprintWKT | dwc:geodeticDatum | dwc:georeferencedBy | dwc:georeferenceProtocol | dwc:georeferenceRemarks | dwc:georeferenceSources | dwc:georeferenceVerificationStatus | dwc:higherGeography | dwc:higherGeographyID | dwc:island | dwc:islandGroup | dwc:locality | dwc:locationAccordingTo | dwc:locationID | dwc:locationRemarks | Iptc4xmpExt:LocationShown | dwc:maximumDepthInMeters | dwc:maximumDistanceAboveSurfaceInMeters | dwc:maximumElevationInMeters | dwc:minimumDepthInMeters | dwc:minimumDistanceAboveSurfaceInMeters | dwc:minimumElevationInMeters | dwc:municipality | dwc:pointRadiusSpatialFit | Iptc4xmpExt:ProvinceState | dwc:stateProvince | Iptc4xmpExt:Sublocation | dwc:verbatimCoordinates | dwc:verbatimCoordinateSystem | dwc:verbatimDepth | dwc:verbatimElevation | dwc:verbatimLatitude | dwc:verbatimLocality | dwc:verbatimLongitude | dwc:verbatimSRS | dwc:waterBody | Iptc4xmpExt:WorldRegion

Temporal Coverage Vocabulary

xmp:CreateDate | dcterms:temporal | ac:timeOfDay

Taxonomic Coverage Vocabulary

dwc:dateIdentified | dwc:identificationQualifier | dwc:identifiedBy | dwc:lifeStage | dwc:nameAccordingTo | ac:otherScientificName | dwc:preparations | dwc:scientificName | dwc:scientificNameID | dwc:sex | ac:subjectOrientation | ac:subjectOrientationLiteral | ac:subjectPart | ac:subjectPartLiteral | ac:taxonCount | ac:taxonCoverage | dwc:vernacularName

Resource Creation Vocabulary

ac:captureDevice | ac:digitizationDate | ac:frameRate | Iptc4xmpExt:LocationCreated | ac:resourceCreationTechnique | mo:sample_rate

Related Resources Vocabulary

ac:associatedObservationReference | ac:associatedSpecimenReference | ac:derivedFrom | ac:IDofContainingCollection | ac:providerID | ac:relatedResourceID

Service Access Point Vocabulary

ac:accessURI | dc:format | dcterms:format | ac:furtherInformationURL | ac:hashFunction | ac:hashValue | ac:licensingException | exif:PixelXDimension | exif:PixelYDimension | ac:serviceExpectation | ac:variant | ac:variantDescription | ac:variantLiteral

Region of Interest Vocabulary

ac:endTime | ac:endTimestamp | ac:hasROI | ac:heightFrac | ac:isROIOf | ac:mediaDuration | ac:mediaSpeed | ac:radius | ac:startTime | ac:startTimestamp | ac:widthFrac | ac:xFrac | ac:yFrac

6.2 Index par Labels

(see_also 6.1 Index par Noms des Termes)

classes

Region of Interest Class | Service Access Point Class

Management Vocabulary

Commenter | Comments | Date Available | Identifier | Metadata Date | Metadata Language | Modified | Provider-managed ID | Rating | Reviewer | Reviewer Comments | Service Access Point | Subtype (IRI) | Subtype (literal) | Title | Type

Attribution Vocabulary

Attribution Link URL | Attribution URL | Copyright Owner | Copyright Statement | Credit | Funding | License Logo URL | License Terms | License URL | Published Source

Agents Vocabulary

Creator | Metadata Creator | Metadata Provider | Provider

Content Coverage Vocabulary

Caption | Description | Language | Lower frequency bound | Physical Setting | Subject Category | Subject Category Vocabulary | Tag | Upper frequency bound

Geography Vocabulary

City or Place Name | Continent | Coordinate Precision | Coordinate Uncertainty In Meters | Country | Country Code | Country Name | County | Decimal Latitude | Decimal Longitude | Footprint Spatial Fit | Footprint SRS | Footprint WKT | Geodetic Datum | Georeference Protocol | Georeference Remarks | Georeference Sources | Georeference Verification Status | Georeferenced By | Higher Geography | Higher Geography ID | Island | Island Group | Locality | Location According To | Location ID | Location Remarks | Location Shown | Maximum Depth In Meters | Maximum Distance Above Surface In Meters | Maximum Elevation In Meters | Minimum Depth In Meters | Minimum Distance Above Surface In Meters | Minimum Elevation In Meters | Municipality | Point Radius Spatial Fit | Province or State | State Province | Sublocation | Verbatim Coordinate System | Verbatim Coordinates | Verbatim Depth | Verbatim Elevation | Verbatim Latitude | Verbatim Locality | Verbatim Longitude | Verbatim SRS | Water Body | World Region

Temporal Coverage Vocabulary

Original Date and Time | Temporal Coverage | Time of Day

Taxonomic Coverage Vocabulary

Common Name | Date Identified | Identification Qualifier | Identified By | Name According To | Other Scientific Name | Scientific Name ID | Scientific Taxon Name | Subject Life Stage | Subject Orientation | Subject Orientation (literal) | Subject Part | Subject Part (literal) | Subject Preparation Technique | Subject Sex | Taxon Count | Taxon Coverage

Resource Creation Vocabulary

Capture Device | Date and Time Digitized | Frame Rate | Location Created | Resource Creation Technique | Sample Rate

Related Resources Vocabulary

Associated Observation Reference | Associated Specimen Reference | Derived From | ID of Containing Collection | Provider ID | Related Resource ID

Service Access Point Vocabulary

Access URI | Format (IRI) | Format (literal) | Further Information URL | Hash | Hash Function | Image Height | Image Width | Licensing Exception Statement | Service Expectation | Variant (IRI) | Variant (literal) | Variant Description

Region of Interest Vocabulary

End Time in Seconds | End Timestamp | Fractional Height | Fractional Width | Fractional X | Fractional Y | Has Region of Interest | Is Region of Interest of | Media Duration | Media Speed | Radius | Start Time in Seconds | Start Timestamp

7 vocabularies

7.1 Management Vocabulary

Nom du Terme dcterms:available
IRI du terme http://purl.org/dc/terms/available
Modifié 2020-01-27
IRI de la version du Terme http://dublincore.org/usage/terms/history/#available-003
Label Date Available
required: No -- repeatable: No
Définition Date (often a range) that the resource became or will become available.
Utilisation The date (often a range) that the resource became or will become available. The date and time MUST comply with the World Wide Web Consortium (W3C) datetime practice, https://www.w3.org/TR/NOTE-datetime, which requires that date and time representation correspond to ISO 8601:1998, but with year fields always comprising 4 digits. This makes datetime records compliant with 8601:2004, https://www.iso.org/standard/40874.html. AC datetime values MAY also follow 8601:2004 for ranges by separating two IS0 8601 datetime fields by a solidus ("forward slash", '/').
notes A use case is the harvesting of metadata published before the media are available, which are pending a formal publication elsewhere. One important example is the case of metadata that documents an occurrence, which metadata harvesters might exploit without use of the media. See also the wikipedia IS0 8601 entry, https://en.wikipedia.org/wiki/ISO_8601, for further explanation and examples.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:commenter
IRI du terme http://rs.tdwg.org/ac/terms/commenter
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/commenter-2023-09-05
Label Commenter
required: No -- repeatable: No
Définition A URI denoting a person who created a comment.
Utilisation Implementers and communities of practice MAY produce restrictions or recommendations on the choice of vocabularies.
notes See also Reviewer Comments for the distinction between Comments and Reviewer Comments. See also the entry for ac:commenterLiteral and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:commenterLiteral
IRI du terme http://rs.tdwg.org/ac/terms/commenterLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/commenterLiteral-2023-09-05
Label Commenter
required: No -- repeatable: No
Définition The name of a person who created a comment, or the literal "anonymous" (= anonymously commented).
notes See also Reviewer Comments for the distinction between Comments and Reviewer Comments. See also the entry for ac:commenter and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:comments
IRI du terme http://rs.tdwg.org/ac/terms/comments
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/comments-2020-01-27
Label Comments
required: No -- repeatable: Yes
Définition Any comment provided on the media resource, as free-form text.
Utilisation Best practice would also identify the commenter.
notes Comments may refer to the resource itself (e. g., asserting a taxon name or location of a biological subject in an image), or to the relation between resource and associated metadata (e. g., asserting that the taxon name given in the metadata is wrong, without asserting a positive identification). There is a separate item for Reviewer Comments, which is defined more as an expert-level review. Implementers or communities of practice might establish conventions about the meaning of the absence of a commenter, but this specification is silent on that matter.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:hasServiceAccessPoint
IRI du terme http://rs.tdwg.org/ac/terms/hasServiceAccessPoint
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/hasServiceAccessPoint-2023-09-05
Label Service Access Point
required: No -- repeatable: Yes
Définition In a chosen serialization (RDF, XML Schema, etc.) the potentially multiple service access points (e.g., for different resolutions of an image) might be provided in a referenced or in a nested object. This property identifies one such access point. That is, each of potentially multiple values of hasServiceAccessPoint identifies a set of representation-dependent metadata using the properties defined under the Service Access Point Vocabulary section of the Audiovisual Core Term List document.
notes Some serializations may flatten the model of service-access points by (a) dropping ac:hasServiceAccessPoint, ac:variant and ac:variantLiteral, (b) repeating properties from the Service Access Point Vocabulary and prefixing them with values of ac:variantLiteral. If such a flat serialization is necessary for services, we recommend to select from among term names of the form "AB" where "A" is one of thumbnail, trailer, lowerQuality, mediumQuality, goodQuality, bestQuality, offline and "B" is one of AccessURI, Format, Extent, FurtherInformationURL, LicensingException, ServiceExpectation (example: thumbnailAccessURI). Implementers in specific constraint languages such as XML Schema or RDF may wish to make Access URI and perhaps dcterms:format mandatory on instances of the service access point.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:identifier
IRI du terme http://purl.org/dc/terms/identifier
Modifié 2020-01-27
IRI de la version du Terme http://dublincore.org/usage/terms/history/#identifierT-001
Label Identifiant
required: Yes for media collections, No for media resources (but preferred if available) -- repeatable: Yes
Définition An unambiguous reference to the resource within a given context.
Utilisation An arbitrary code that is unique for the resource, with the resource being either a provider, collection, or media item.
notes Using multiple identifiers implies that they have a same-as relationship, i.e. they all identify the same object (e. g. an object may have all of an http-URL, an lsid-URI, and a UUID).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme xmp:MetadataDate
IRI du terme http://ns.adobe.com/xap/1.0/MetadataDate
Modifié 2020-01-27
Label Metadata Date
required: No -- repeatable: No
Définition The date and time that any metadata for this resource was last changed. It should be the same as or more recent than xmp:ModifyDate.
Utilisation Point in time recording when the last modification to metadata (not necessarily the media object itself) occurred. The date and time MUST comply with the World Wide Web Consortium (W3C) datetime practice, https://www.w3.org/TR/NOTE-datetime, which requires that date and time representation correspond to ISO 8601:1998, but with year fields always comprising 4 digits. This makes datetime records compliant with 8601:2004, https://www.iso.org/standard/40874.html. AC datetime values MAY also follow 8601:2004 for ranges by separating two IS0 8601 datetime fields by a solidus ("forward slash", '/').
notes This is not dcterms:modified, which refers to the resource itself rather than its metadata. See also the wikipedia IS0 8601 entry, https://en.wikipedia.org/wiki/ISO_8601, for further explanation and examples.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataLanguage
IRI du terme http://rs.tdwg.org/ac/terms/metadataLanguage
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataLanguage-2023-09-05
Label Metadata Language
required: Yes -- repeatable: No
Définition The URI of the language of description and other metadata (but not necessarily of the image itself) , from the ISO639-2 list of URIs for ISO 3-letter language codes, http://id.loc.gov/vocabulary/iso639-2.
Utilisation At least one of ac:metadataLanguage and ac:metadataLanguageLiteral MUST be supplied but, when feasible, supplying both might make the metadata more widely useful. They must specify the same language. In case of ambiguity, ac:metadataLanguage prevails.
notes This is NOT dcterms:language, which is about the resource, not the metadata. Metadata Language is deliberately single-valued, imposing on unstructured serializations a requirement that multi-lingual metadata be represented as separate, complete, metadata records. Audiovisual Core requires that each record also contains the language-neutral terms. In the absence of this requirement, metadata consumers would need to know which terms are language-neutral and merge these terms from all provided metadataLanguages into a single record. Metadata consumers may re-combine the information based on the dcterms:identifier that identifies the multimedia resource. Nothing in this document would, however, prevent an implementer, e. g. of an XML-Schema representation, from providing a fully hierarchical schema in which language neutral terms occur only a single time, and only the language-specific terms are repeated in a way that unambigously relates them to a metadata language. In RDF it may be a simple repetition of plain literals associated with a language (e.g., xml:lang attribute in RDF/XML). The language attribute would then be required in Audiovisual Core and would replace ac:metadataLanguage.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataLanguageLiteral
IRI du terme http://rs.tdwg.org/ac/terms/metadataLanguageLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataLanguageLiteral-2023-09-05
Label Metadata Language
required: Yes -- repeatable: No
Définition Language of description and other metadata (but not necessarily of the image itself) represented as an ISO639-2 three letter language code.
Utilisation ISO639-1 two-letter codes are permitted but deprecated. At least one of ac:metadataLanguage and ac:metadataLanguageLiteral MUST be supplied but, when feasible, supplying both might make the metadata more widely useful. They MUST specify the same language. In case of ambiguity, ac:metadataLanguage prevails.
notes This is NOT dc:language, which is about the resource, not the metadata. Metadata Language is deliberately single-valued, imposing on unstructured serializations a requirement that multi-lingual metadata be represented as separate, complete, metadata records. Audiovisual Core requires that each record also contains the language-neutral terms. In the absence of this requirement, metadata consumers would need to know which terms are language-neutral and merge these terms from all provided metadataLanguages into a single record. Metadata consumers may re-combine the information based on the dcterms:identifier that identifies the multimedia resource. Nothing in this document would, however, prevent an implementer, e. g. of an XML-Schema representation, from providing a fully hierarchical schema in which language neutral terms occur only a single time, and only the language-specific terms are repeated in a way that unambigously relates them to a metadata language. In RDF it may be a simple repetition of plain literals associated with a language (e.g., xml:lang attribute in RDF/XML). The language attribute would then be required in Audiovisual Core and would replace ac:metadataLanguage.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:modified
IRI du terme http://purl.org/dc/terms/modified
Modifié 2020-01-27
IRI de la version du Terme http://dublincore.org/usage/terms/history/#modified-003
Label Modifié
required: No -- repeatable: Yes
Définition Date on which the resource was changed.
Utilisation Date that the media resource was altered. The date and time MUST comply with the World Wide Web Consortium (W3C) datetime practice, https://www.w3.org/TR/NOTE-datetime, which requires that date and time representation correspond to ISO 8601:1998, https://www.iso.org/standard/40874.html, but with year fields always comprising 4 digits. This makes datetime records compliant with 8601:2004. AC datetime values MAY also follow 8601:2004 for ranges by separating two IS0 8601 datetime fields by a solidus ("forward slash", '/').
notes dcterms:modified permits all modification dates to be recorded, or if only one is recorded, it is assumed to be the latest. See also the wikipedia IS0 8601 entry, https://en.wikipedia.org/wiki/ISO_8601, for further explanation and examples.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:providerManagedID
IRI du terme http://rs.tdwg.org/ac/terms/providerManagedID
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/providerManagedID-2020-01-27
Label Provider-managed ID
required: No -- repeatable: No
Définition A free-form identifier (a simple number, an alphanumeric code, a URL, etc.) for the resource that is unique and meaningful primarily for the data provider.
notes Ideally, this would be a globally unique identifier (GUID), but the provider is encouraged to supply any form of identifier that simplifies communications on resources within their project and helps to locate individual data items in the provider's data repositories. It is the provider's decision whether to expose this value or not.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme xmp:Rating
IRI du terme http://ns.adobe.com/xap/1.0/Rating
Modifié 2020-01-27
Label Rating
required: No -- repeatable: No
Définition A user-assigned rating for this file. The value shall be -1 or in the range [0..5], where -1 indicates "rejected" and 0 indicates "unrated". If xmp:Rating is not present, a value of 0 should be assumed.
Utilisation A rating of the media resources, provided by record originators or editors, with '1' (worst) to '5' (best). Anticipated usage is for a typical 'star rating' UI, with the addition of a notion of rejection. Values MAY be decimal numbers in the permitted range.
notes The origin of the rating is not communicated. It may, e. g., be based on user feedback or on editorial ratings. By "user-assigned" is meant assigned by the originator or editor of the record using the term.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:reviewer
IRI du terme http://rs.tdwg.org/ac/terms/reviewer
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/reviewer-2023-09-05
Label Reviewer
required: No -- repeatable: Yes
Définition URI for a reviewer.
Utilisation If present, then resource is peer-reviewed, even if Reviewer Comments is absent or empty. Its presence tells whether an expert in the subject featured in the media has reviewed the media item or collection and approved its metadata description; MUST display a name or the literal "anonymous" (= anonymously reviewed).
notes Provider is asserting they accept this review as competent. See also ac:reviewerLiteral and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:reviewerComments
IRI du terme http://rs.tdwg.org/ac/terms/reviewerComments
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/reviewerComments-2020-01-27
Label Reviewer Comments
required: No -- repeatable: Yes
Définition Any comment provided by a reviewer with expertise in the subject, as free-form text.
notes Reviewer Comments may refer to the resource itself (e. g., asserting a taxon name or location of a biological subject in an image), or to the relation between resource and associated metadata (e. g., asserting that the taxon name given in the metadata is wrong, without asserting a positive identification). There is a separate item "Comments" for text from commenters of unrecorded expertise.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:reviewerLiteral
IRI du terme http://rs.tdwg.org/ac/terms/reviewerLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/reviewerLiteral-2023-09-05
Label Reviewer
required: No -- repeatable: Yes
Définition String providing the name of a reviewer.
Utilisation If present, then resource is peer-reviewed, even if Reviewer Comments is absent or empty. Its presence tells whether an expert in the subject featured in the media has reviewed the media item or collection and approved its metadata description; MUST display a name or the literal "anonymous" (= anonymously reviewed).
notes Provider is asserting they accept this review as competent. See also ac:reviewer and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:subtype
IRI du terme http://rs.tdwg.org/ac/terms/subtype
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subtype-2023-09-05
Label Subtype (IRI)
required: No -- repeatable: Yes
Définition A class, represented by an IRI, that provides for more specialization of the media item type than dcterms:type.
Utilisation The subtype term MUST NOT be applied to Collection objects. However, the Description term in the Content Coverage Vocabulary might add further description to a Collection object. IRI values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subtype. Human-readable information about the Controlled Vocabulary for subtype is at http://rs.tdwg.org/ac/doc/subtype/ . In text-based systems such as tables, IRI values MUST be in unabbreviated form. When an appropriate subtype is not available in the Audiovisual Core controlled vocabulary, a term IRI that is not in a TDWG namespace MAY be used. Conforming applications MAY choose to ignore controlled values not issued by Audiovisual Core.
notes See ac:subtypeLiteral for usage with strings.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:subtypeLiteral
IRI du terme http://rs.tdwg.org/ac/terms/subtypeLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subtypeLiteral-2023-09-05
Label Subtype (literal)
required: No -- repeatable: Yes
Définition A class, represented by a controlled value string, that provides for more specialization of the media item type than dc:type.
Utilisation The subtypeLiteral term MUST NOT be applied to Collection objects. However, the Description term in the Content Coverage Vocabulary might add further description to a Collection object. Controlled string values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subtype. Human-readable information about the Controlled Vocabulary for subtype is at http://rs.tdwg.org/ac/doc/subtype/ . It is best practice to use ac:subtype instead of ac:subytpeLiteral whenever practical.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:title
IRI du terme http://purl.org/dc/terms/title
Modifié 2020-01-27
IRI de la version du Terme http://dublincore.org/usage/terms/history/#titleT-002
Label Title
required: No -- repeatable: No
Définition A name given to the resource.
Utilisation Concise title, name, or brief descriptive label of institution, resource collection, or individual resource. This field SHOULD include the complete title with all the subtitles, if any.
notes It is strongly suggested to provide a title. The title facilitates interactions with humans: e.g., it could be used as display text of hyperlinks or to provide a choice of images in a pick list. The title is therefore highly useful and an effort should be made to provide it where it is not already available. When the resource is a collection without an institutional or official name, but with a thematic content, a descriptive title, e. g. "Urban Ants of New England," would be suitable. In individual media resources depicting taxa, the scientific name or names of taxa often form a good title. Common names in addition to or instead of scientific names are also acceptable. Indications of action or roles captured by the media resource, such as predatory acts, are desirable ("Rattlesnake eating deer mouse", "Pollinators of California Native Plants").
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dc:type
IRI du terme http://purl.org/dc/elements/1.1/type
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#type-006
Label Type
required: Yes -- repeatable: No
Définition La nature ou le genre de la ressource.
Utilisation The value of dc:type SHOULD be a term name of any term from the DCMI Type Vocabulary, https://www.dublincore.org/specifications/dublin-core/dcmi-terms/#section-7 RECOMMENDED term names for media items are "Collection", "StillImage", "Sound", "MovingImage", "InteractiveResource", and "Text". A Collection MUST be given a value of "Collection". Following the DC recommendations at http://purl.org/dc/dcmitype/Text, images of text SHOULD be given a value of "Text" for dc:type. A value for at least one of dc:type and dcterms:type MUST be supplied in an Audiovisual Core record but when feasible, supplying both can make the metadata more widely useful. The values of dc:type and dcterms:type SHOULD designate the same type, but in case of ambiguity dcterms:type prevails.
notes If the resource is a Collection, this term does not identify what types of objects it may contain. See also the entry for dcterms:type in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_20
Nom du Terme dcterms:type
IRI du terme http://purl.org/dc/terms/type
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#typeT-001
Label Type
required: Yes -- repeatable: No
Définition The nature or genre of the resource.
Utilisation The value of dcterms:type SHOULD be an IRI of any term from the DCMI Type Vocabulary, https://www.dublincore.org/specifications/dublin-core/dcmi-terms/#section-7 . In text-based systems (e.g. spreadsheets) the value MUST be an IRI with an unabbreviated namespace. Machine-readable systems MAY use any form of the IRI (e.g. compact URIs; CURIEs) that can be determined to be equivalent to the unabbreviated IRI. RECOMMENDED values for media items are those IRIs whose term names are "Collection", "StillImage", "Sound", "MovingImage", "InteractiveResource", and "Text". A Collection MUST be given a value of http://purl.org/dc/dcmitype/Collection. Following the DC recommendations at http://purl.org/dc/dcmitype/Text, images of text SHOULD be given a value of http://purl.org/dc/dcmitype/Text for dcterms:type. A value for at least one of dc:type and dcterms:type MUST be supplied in an Audiovisual Core record but when feasible, supplying both can make the metadata more widely useful. The values of dc:type and dcterms:type SHOULD designate the same type, but in case of ambiguity dcterms:type prevails.
notes If the resource is a Collection, this term does not identify what types of objects it may contain. See also the entry for dc:type in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2009-12-07_1
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_20

7.2 Attribution Vocabulary

Nom du Terme ac:attributionLinkURL
IRI du terme http://rs.tdwg.org/ac/terms/attributionLinkURL
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/attributionLinkURL-2020-01-27
Label Attribution Link URL
required: No -- repeatable: No
Définition The URL where information about ownership, attribution, etc. of the resource may be found.
notes This URL may be used in creating a clickable logo. Providers should consider making this link as specific and useful to consumers as possible, e. g., linking to a metadata page of the specific image resource rather than to a generic page describing the owner or provider of a resource.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:attributionLogoURL
IRI du terme http://rs.tdwg.org/ac/terms/attributionLogoURL
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/attributionLogoURL-2020-01-27
Label Attribution URL
required: No -- repeatable: No
Définition The URL of the icon or logo image to appear in source attribution.
notes Entering this URL into a browser should only result in the icon (not in a webpage including the icon).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme photoshop:Credit
IRI du terme http://ns.adobe.com/photoshop/1.0/Credit
Modifié 2020-01-27
Label Credit
required: No -- repeatable: No
Définition The credit to person(s) and/or organisation(s) required by the supplier of the item to be used when published. This is a free-text field.
Utilisation free text for "Please cite this as ..."
notes IPTC also refers to this generically as a "Credit Line" as it is frequently displayed with the media.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:fundingAttribution
IRI du terme http://rs.tdwg.org/ac/terms/fundingAttribution
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/fundingAttribution-2020-01-27
Label Funding
required: No -- repeatable: Yes
Définition Text description of organizations or individuals who funded the creation of the resource.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:licenseLogoURL
IRI du terme http://rs.tdwg.org/ac/terms/licenseLogoURL
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/licenseLogoURL-2020-01-27
Label License Logo URL
required: No -- repeatable: No
Définition A URL providing access to a logo that symbolizes the License.
notes The originating metadata provider is strongly urged to choose a suitable logo as a graphical representation of the license. Failure to do so may leave downstream aggregators in a difficult position to supply a logo that adequately represents the professional, legal, or social aims of the licensors (license givers). Example: http://i.creativecommons.org/l/by-nc-sa/3.0/us/88x31.png provides access to a logo image.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme xmpRights:Owner
IRI du terme http://ns.adobe.com/xap/1.0/rights/Owner
Modifié 2023-09-05
Label Copyright Owner
required: No -- repeatable: No
Définition A list of legal owners of the resource.
Utilisation A list of the names of the owners of the copyright. 'Unknown' is an acceptable value, but 'Public Domain' is not. In that case, omit or leave empty xmpRights:Owner, and put 'Public Domain' in the Copyright Statement (dc:rights). Note: Audiovisual Core guidelines on value format are less restrictive than is specified in the IPTC guidelines.
notes Some providers use dc:publisher for this purpose, but it seems doubtful that the publisher is by necessity the copyright owner. 'Public Domain' is not an appropriate value because it denotes something that is not under copyright. Except for 'Public Domain' resources, it is strongly urged that this field be supplied.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:rights
IRI du terme http://purl.org/dc/terms/rights
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#rightsT-001
Label Copyright Statement
required: Yes -- repeatable: No
Définition Informations sur les droits détenus dans et sur la ressource.
Utilisation A URI pointing to structured information about rights held in and over the resource. At least one of dcterms:rights and dc:rights MUST be supplied but, when feasible, supplying both might make the metadata more widely useful. They MUST specify the same rights. In case of ambiguity, dcterms:rights prevails.
notes This expresses rights over the media resource, not over the metadata text. See also the entry for dc:rights in the Audiovisual Core Term List document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions. Examples include http://creativecommons.org/licenses/by/3.0/legalcode and http://creativecommons.org/publicdomain/zero/1.0/.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-11-06_17
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dc:rights
IRI du terme http://purl.org/dc/elements/1.1/rights
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#rights-006
Label Copyright Statement
required: Yes -- repeatable: No
Définition Informations sur les droits détenus dans et sur la ressource.
Utilisation A full-text, readable copyright statement, as required by the national legislation of the copyright holder. On collections, this applies to all contained objects, unless the object itself has a different statement. Do not place just the name of the copyright holder(s) here! That belongs in a list in the xmpRights:Owner field, which SHOULD be supplied if dc:rights is not 'Public Domain', which is appropriate only if the resource is known to be not under copyright. At least one of dcterms:rights and dc:rights MUST be supplied but, when feasible, supplying both might make the metadata more widely useful. They MUST specify the same rights.
notes This expresses rights over the media resource, not over the metadata text. In case of ambiguity, dcterms:rights prevails. See also the entry for dcterms:rights in the Audiovisual Core Term List document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions. Examples: "Copyright XY 2008, all rights reserved", "© 2008 XY Museum", "Public Domain.", "Copyright unknown."
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dc:source
IRI du terme http://purl.org/dc/elements/1.1/source
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#source-006
Label Published Source
required: No -- repeatable: Yes
Définition A related resource from which the described resource is derived.
Utilisation A string providing an identifiable source from which the described resources was derived.
notes If the resource was digitized from a non-digital resource, or was also previously published in a digital or printed publication, this describes the original. Do not put generally "related" publications in here. This field normally contains a free-form text description. If a URI is available it should be provided in dcterms:source. Can be repeatable if a montage of images. Information about further provenance beyond the ultimate source should be put in the derivedFrom attribute. See also the entry for dcterms:source in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:source
IRI du terme http://purl.org/dc/terms/source
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#sourceT-001
Label Published Source
required: No -- repeatable: Yes
Définition A related resource from which the described resource is derived.
Utilisation URI for an identifiable source from which the described resources was derived.
notes If the resource was digitized from a non-digital resource, or was also previously published in a digital or printed publication, this describes the original. If a string is required for this, use dc:source. Do not put generally "related" publications in here. A URI that can be resolved and dereferenced to provide a description of the source resource may also be used here. For example, "http://www.loc.gov/pictures/item/fsa1998021539/PP/" is the address of a web page that provides a description the original negative of a famous picture by the photographer Dorothea Lange and so would be an appropriate value of dcterms:source. The term may be repeatable if a montage of images. Information about further provenance beyond the ultimate source should be put in the derivedFrom attribute. See also the entry for dc:source in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme xmpRights:UsageTerms
IRI du terme http://ns.adobe.com/xap/1.0/rights/UsageTerms
Modifié 2020-01-27
Label License Terms
required: No -- repeatable: No
Définition A collection of text instructions on how a resource can be legally used, given in a variety of languages.
Utilisation The license statement defining how resources might be used. Information on a collection applies to all contained objects unless the object has a different statement. Where different quality variants (e. g. different resolutions of images) are published under different licenses, the AC term "Licensing Exception Statement" supports variant-specific licenses. Note that the medium or low resolution levels of the same image might be available under open access licenses.
notes Example: "Available under Creative Commons BY-SA 3.0 license". This also describes the commercial availability of items. Buying an identification tool or media resource is essentially the purchase of an individual license. Examples for such License statements: "Available through bookstores" for a commercially published CD, and "Individual licenses available for purchase" for a high-resolution image. In general, this term determines the default licensing for the media. License terms specific to variants or representations of the media resource (e.g., different resolutions) are dealt within the section on Service Access Point Vocabulary
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme xmpRights:WebStatement
IRI du terme http://ns.adobe.com/xap/1.0/rights/WebStatement
Modifié 2021-10-05
Label License URL
required: No -- repeatable: No
Définition A Web URL for a statement of the ownership and usage rights for this resource.
Utilisation A URL defining or further elaborating on the license statement (e. g., a web page explaining the precise terms of use). Where different quality variants (e. g. different resolutions of images) are published under different licenses, the AC term "Licensing Exception Statement" supports variant-specific licenses
notes The value of this field may provide a complete definition of the terms of use. For Creative Commons, the appropriate value is the URL of the defining Web page for the license. Example: http://creativecommons.org/licenses/by-nc-sa/3.0/us/
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.3 Agents Vocabulary

Nom du Terme dc:creator
IRI du terme http://purl.org/dc/elements/1.1/creator
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#creator-006
Label Creator
required: No -- repeatable: Yes
Définition An entity primarily responsible for making the resource.
Utilisation The person or organization responsible for creating the media resource. The value MAY be simple text including contact information.
notes Note that the Creator need not be the Copyright Owner. See also the entry for dcterms:creator in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:creator
IRI du terme http://purl.org/dc/terms/creator
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#creatorT-002
Label Creator
required: No -- repeatable: Yes
Définition An entity primarily responsible for making the resource.
Utilisation A URI representing the person or organization responsible for creating the media resource.
notes Note that the Creator need not be the Copyright Owner. See also the entry for dc:creator in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataCreator
IRI du terme http://rs.tdwg.org/ac/terms/metadataCreator
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataCreator-2023-09-05
Label Metadata Creator
required: No -- repeatable: Yes
Définition A URI representing a person or organization originally creating the resource metadata record.
notes See also the entry for ac:metadataCreatorLiteral and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataCreatorLiteral
IRI du terme http://rs.tdwg.org/ac/terms/metadataCreatorLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataCreatorLiteral-2023-09-05
Label Metadata Creator
required: No -- repeatable: Yes
Définition Name of the person or organization originally creating the resource metadata record.
notes See also the entry for ac:metadataCreator and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataProvider
IRI du terme http://rs.tdwg.org/ac/terms/metadataProvider
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataProvider-2023-09-05
Label Metadata Provider
required: No -- repeatable: Yes
Définition URI of person or organization originally responsible for providing the resource metadata record.
notes Media resources and their metadata may be served from different institutions, e. g. in the case of aggregators adding user annotations, taxon identifications, or ratings. Compare Provider. See also the entry for ac:metadataProviderLiteral and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:metadataProviderLiteral
IRI du terme http://rs.tdwg.org/ac/terms/metadataProviderLiteral
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/metadataProviderLiteral-2020-01-27
Label Metadata Provider
required: No -- repeatable: Yes
Définition Name of the person or organization originally responsible for providing the resource metadata record.
notes Media resources and their metadata may be served from different institutions, e. g. in the case of aggregators adding user annotations, taxon identifications, or ratings. Compare Provider. See also the entry for ac:metadataProvider in this document and the section Namespaces, Prefixes and Term Names for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:provider
IRI du terme http://rs.tdwg.org/ac/terms/provider
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/provider-2023-09-05
Label Provider
required: No -- repeatable: No
Définition URI for person or organization responsible for presenting the media resource.
Utilisation If no separate Metadata Provider is given, this also attributes the metadata.
notes Media resources and their metadata may be served from different institutions, e. g. in the case of aggregators adding user annotations, taxon identifications, or ratings. See also the entry for ac:providerLiteral and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:providerLiteral
IRI du terme http://rs.tdwg.org/ac/terms/providerLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/providerLiteral-2023-09-05
Label Provider
required: No -- repeatable: No
Définition Name of the person or organization responsible for presenting the media resource.
Utilisation If no separate Metadata Provider is given, this also attributes the metadata.
notes Media resources and their metadata may be served from different institutions, e. g. in the case of aggregators adding user annotations, taxon identifications, or ratings. See also the entry for ac:provider and the section Namespaces, Prefixes and Term Names in the Audiovisual Core Term List document for discussion of the rationale for separate terms taking URI values from those taking Literal values where both are possible. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.4 Content Coverage Vocabulary

Nom du Terme ac:caption
IRI du terme http://rs.tdwg.org/ac/terms/caption
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/caption-2021-10-05
Label Caption
required: No -- repeatable: No
Définition As alternative or in addition to description, a caption is free-form text to be displayed together with (rather than instead of) a resource that is suitable for captions (especially images).
notes If both description and caption are present in the metadata, a description is typically displayed instead of the resource, a caption together with the resource. Thus, in HTML it would be appropriate to use ac:caption values in figcaption elements. Often only one of description or caption is present; choose the term most appropriate for your metadata.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme Iptc4xmpExt:CVterm
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/CVterm
Modifié 2020-01-27
Label Subject Category
required: No -- repeatable: Yes
Définition A term to describe the content of the image by a value from a Controlled Vocabulary.
Utilisation Controlled vocabulary of subjects to support broad classification of media items. Terms from various controlled vocabularies may be used. AC-recommended vocabularies are preferred and MAY be unqualified literals (not a full URI). For terms from other vocabularies either a precise URI SHOULD be used, or, as long as all unqualified terms in all vocabularies are unique, metadata SHOULD provide the source vocabularies using the Subject Category Vocabulary term. The value SHOULD be a string, whose text can also be in the form of a URL. These guidelines on value format are less restrictive than is specified by the IPTC guidelines.
notes Recommended sets include: the NASA Global Change Master Directory (GCMD; http://gcmd.nasa.gov/), Subject Categories defined in Key to Nature (K2N; http://www.keytonature.eu/wiki/Subject_Category), the BioComplexity Thesaurus; https://www2.usgs.gov/core_science_systems/csas/biocomplexity_thesaurus/, the Description Type GBIF Vocabulary; http://rs.gbif.org/vocabulary/gbif/description_type.xml, the TDWG Species Profile Model; http://rs.tdwg.org/ontology/voc/SPMInfoItems.rdf, the Plinian Core; https://github.com/tdwg/PlinianCore/wiki, the European Environmental Agency GEneral Multilingual Environmental Thesaurus (GEMET; http://www.eionet.europa.eu/gemet), and the Long Term Ecological Research Network Controlled Vocabulary (LTER; http://vocab.lternet.edu/). The vocabulary may include major taxonomic groups (such as "vertebrates" or "fungi") or ecosystem terms ("savannah", "temperate rain forest", "forest fires", "aquatic vertebrates"). Other formal classifications (published in print or online) such as habitat, fuel, invasive species, agroproductivity, fisheries, migratory species etc. are also suitable.
Type Propriété
Nom du Terme dcterms:description
IRI du terme http://purl.org/dc/terms/description
Modifié 2021-10-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#descriptionT-001
Label Description
required: No -- repeatable: No
Définition An account of the resource.
Utilisation Description of collection or individual resource, containing the Who, What, When, Where and Why as free-form text.
notes This property optionally allows the presentation of detailed information and will in most cases be shown together with the resource title. If both a description and a caption are present in the metadata, a description is typically displayed instead of the resource, whereas a caption is displayed together with the resource. The description should aim to be a good proxy for the underlying media resource in cases where only text can be shown, whereas the caption may only make sense when shown together with the media. Thus, in HTML it would be appropriate to use dcterms:description values for alt attributes in img elements. Often only one of description or caption is present; choose the term most appropriate for your metadata. It is the role of implementers of an AC concrete representation (e.g., an XML Schema, an RDF representation, etc.) to decide and document how formatting advice will be represented in descriptions serialized according to such representations.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:freqHigh
IRI du terme http://rs.tdwg.org/ac/terms/freqHigh
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/freqHigh-2021-10-05
Label Upper frequency bound
required: No -- repeatable: No
Définition The highest frequency of the phenomena reflected in the multimedia item or Region of Interest.
Utilisation Numeric value in hertz (Hz)
notes This term refers to the sound events depicted and not to the constraints of the recording medium, so are in principle independent from sampleRate. If dwc:scientificName is specified and if applied to the entire multimedia item, these frequency bounds refer to the sounds of the species given in the dwc:scientificName throughout the whole recording. Although many users will specify both freqLow and freqHigh, it is permitted to specify just one or the other, for example if only one of the bounds is discernible.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2020-10-13_32
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:freqLow
IRI du terme http://rs.tdwg.org/ac/terms/freqLow
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/freqLow-2021-10-05
Label Lower frequency bound
required: No -- repeatable: No
Définition The lowest frequency of the phenomena reflected in the multimedia item or Region of Interest.
Utilisation Numeric value in hertz (Hz)
notes This term refers to the sound events depicted and not to the constraints of the recording medium, so are in principle independent from sampleRate. If dwc:scientificName is specified and if applied to the entire multimedia item, these frequency bounds refer to the sounds of the species given in the dwc:scientificName throughout the whole recording. Although many users will specify both freqLow and freqHigh, it is permitted to specify just one or the other, for example if only one of the bounds is discernible.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2020-10-13_32
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme dc:language
IRI du terme http://purl.org/dc/elements/1.1/language
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#language-007
Label Langue
required: No -- repeatable: Yes
Définition Une langue de la ressource.
Utilisation Language(s) of resource itself represented in the ISO639-2 three-letter language code. ISO639-1 two-letter codes are permitted but deprecated.
notes An image may contain language such as superimposed labels. If an image is of a natural scene or organism, without any language included, the resource is language-neutral (ISO code "zxx"). Resources with present but unknown language are to be coded as undetermined (ISO code "und"). Regional dialects or other special cases should conform to the ISO639-5 Alpha-3 Code for Language Families and Groups, http://id.loc.gov/vocabulary/iso639-5.html, where possible or the IETF Best Practices for Tags Identifying Languages, https://tools.ietf.org/html/rfc5646, where not. See also the entry for dcterms:language in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:language
IRI du terme http://purl.org/dc/terms/language
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#languageT-001
Label Langue
required: No -- repeatable: Yes
Définition A language of the resource.
Utilisation URI from the ISO639-2 list of URIs for ISO 3-letter language codes, http://id.loc.gov/vocabulary/iso639-2.
notes An image may contain language such as superimposed labels. If an image is of a natural scene or organism, without any language included, the resource is language-neutral with URI http://id.loc.gov/vocabulary/iso639-2/zxx corresponding to ISO ISO639-2 code "zxx". Resources with present but unknown language are to be coded as undetermined, with URI http://id.loc.gov/vocabulary/iso639-2/und corresponding to ISO639-2 code "und". Regional dialects or other special cases should conform to the ISO639-5 Alpha-3 Code for Language Families and Groups, http://id.loc.gov/vocabulary/iso639-5.html, where possible or the IETF Best Practices for Tags Identifying Languages, https://tools.ietf.org/html/rfc5646, where not. See also the entry for dc:language in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:physicalSetting
IRI du terme http://rs.tdwg.org/ac/terms/physicalSetting
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/physicalSetting-2020-01-27
Label Physical Setting
required: No -- repeatable: Yes
Définition The setting of the content represented in media such as images, sounds, and movies if the provider deems them relevant.
Utilisation Constrained vocabulary of: "Natural" = Object in its natural setting of the object (e. g. living organisms in their natural environment); "Artificial" = Object in an artificial environment (e. g. living organisms in an artificial environment such as a zoo, garden, greenhouse, or laboratory); "Edited" = Human media editing of a natural setting or media acquisition with a separate media background such as a photographic backdrop.
notes Multiple values may be needed for movies or montages. See also ac:resourceCreationTechnique which should be used to describe any modifications to the resource itself. Communities of practice should form best practices for the use of these controlled terms.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:subjectCategoryVocabulary
IRI du terme http://rs.tdwg.org/ac/terms/subjectCategoryVocabulary
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subjectCategoryVocabulary-2020-01-27
Label Subject Category Vocabulary
required: No -- repeatable: Yes
Définition Any vocabulary or formal classification from which terms in the Subject Category have been drawn.
notes The AC recommended vocabularies do not need to be cited here. There is no required linkage between individual Subject Category terms and the vocabulary; the mechanism is intended to support discovery of the normative URI for a term, but not guarantee it.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:tag
IRI du terme http://rs.tdwg.org/ac/terms/tag
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/tag-2020-01-27
Label Tag
required: No -- repeatable: Yes
Définition General keywords or tags.
notes Tags may be multi-worded phrases. Where scientific names, common names, geographic locations, etc. are separable, those should go into the more specific coverage metadata items provided further below. Examples: "flower diagram". Character or part keywords like "leaf", or "flower color" are especially desirable.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.5 Geography Vocabulary

Note that dwc:locality may be used, but as applied to media this term may be ambiguous as to whether it applies to the location depicted or the location at which the media was created. When disambiguating information is available, it is better to use the terms Location Shown and Location Created. The latter is in the Resource Creation Vocabulary.

Location Created and Location Shown are separated in the current version of IPTC, and the Metadata Working Group (Metadata Working Group Guidelines for Handling Image Metadata, Version 2.0, November 2010) also recommends this. We follow this below in order to support the expected future increase of automatic GPS-based coordinate recording. As a special case, the AC group recommends to change the semantics of Location Shown in the case of biodiversity specimens, where the original location may differ from the current location at which the specimen is held in a collection. In this case, Location Shown should exclusively refer to the location where a specimen was originally collected (gathering or sampling location). Use Location Created to express the location where the resource was created (a specimen was digitized).

Nom du Terme Iptc4xmpExt:City
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/City
Modifié 2020-01-27
Label City or Place Name
required: No -- repeatable: Yes
Définition Name of the city of a location. This element is at the fourth level of a top-down geographical hierarchy.
Utilisation Optionally, the name of a city or place commonly found in gazetteers (such as a mountain or national park) in which the subjects (e. g., species, habitats, or events) were located.
Type Propriété
Nom du Terme dwc:continent
IRI du terme http://rs.tdwg.org/dwc/terms/continent
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/continent-2017-10-06
Label Continent
required: No -- repeatable: Yes
Définition The name of the continent in which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Africa, Antarctica, Asia, Europe, North America, Oceania, South America
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme dwc:coordinatePrecision
IRI du terme http://rs.tdwg.org/dwc/terms/coordinatePrecision
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/coordinatePrecision-2017-10-06
Label Précision des coordonnées
required: No -- repeatable: Yes
Définition A decimal representation of the precision of the coordinates given in the decimalLatitude and decimalLongitude.
Exemples 0.00001 (normal GPS limit for decimal degrees). 0.000278 (nearest second). 0.01667 (nearest minute). 1.0 (nearest degree).
Type Propriété
Nom du Terme dwc:coordinateUncertaintyInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/coordinateUncertaintyInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/coordinateUncertaintyInMeters-2017-10-06
Label Incertitude des coordonnées en mètres
required: No -- repeatable: Yes
Définition The horizontal distance (in meters) from the given decimalLatitude and decimalLongitude describing the smallest circle containing the whole of the Location. Leave the value empty if the uncertainty is unknown, cannot be estimated, or is not applicable (because there are no coordinates). Zero is not a valid value for this term.
Exemples 30 (reasonable lower limit of a GPS reading under good conditions if the actual precision was not recorded at the time). 71 (uncertainty for a UTM coordinate having 100 meter precision and a known spatial reference system).
Type Propriété
Nom du Terme dwc:country
IRI du terme http://rs.tdwg.org/dwc/terms/country
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/country-2017-10-06
Label Pays
required: No -- repeatable: Yes
Définition The name of the country or major administrative unit in which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Denmark, Colombia, España
Type Propriété
Nom du Terme dwc:countryCode
IRI du terme http://rs.tdwg.org/dwc/terms/countryCode
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/countryCode-2017-10-06
Label Code du pays
required: No -- repeatable: Yes
Définition The standard code for the country in which the Location occurs.
notes Recommended best practice is to use an ISO 3166-1-alpha-2 country code.
Exemples AR, SV
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme Iptc4xmpExt:CountryCode
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/CountryCode
Modifié 2020-01-27
Label Code du pays
required: No -- repeatable: Yes
Définition The ISO code of a country of a location. This element is at the second level of a top-down geographical hierarchy.
Utilisation The geographic location of the specific entity or entities documented by the media item, expressed through a constrained vocabulary of countries using 2-letter ISO 3166-1 country code (e. g. "IT, SI").
notes Accepted exceptions to be used instead of ISO codes are: "Global", "Marine", "Europe", "N-America", "C-America", "S-America", "Africa", "Asia", "Oceania", ATA = "Antarctica", XEU = "European Union", XAR = "Arctic", "ZZZ" = "Unknown country" (3 letter abbreviations from IPTC codes).
Type Propriété
Nom du Terme Iptc4xmpExt:CountryName
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/CountryName
Modifié 2020-01-27
Label Country Name
required: No -- repeatable: Yes
Définition The name of a country of a location. This element is at the second level of a top-down geographical hierarchy.
Utilisation This field can be free text, but where possible, the use of http://iptc.org/std/Iptc4xmpExt/2008-02-29/CountryCode is preferred.
Type Propriété
Nom du Terme dwc:county
IRI du terme http://rs.tdwg.org/dwc/terms/county
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/county-2017-10-06
Label County
required: No -- repeatable: Yes
Définition The full, unabbreviated name of the next smaller administrative region than stateProvince (county, shire, department, etc.) in which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Missoula, Los Lagos, Mataró
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme dwc:decimalLatitude
IRI du terme http://rs.tdwg.org/dwc/terms/decimalLatitude
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/decimalLatitude-2017-10-06
Label Latitude en échelle décimale
required: No -- repeatable: Yes
Définition The geographic latitude (in decimal degrees, using the spatial reference system given in geodeticDatum) of the geographic center of a Location. Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive.
Exemples -41.0983423
Type Propriété
Nom du Terme dwc:decimalLongitude
IRI du terme http://rs.tdwg.org/dwc/terms/decimalLongitude
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/decimalLongitude-2017-10-06
Label Longitude en échelle décimale
required: No -- repeatable: Yes
Définition The geographic longitude (in decimal degrees, using the spatial reference system given in geodeticDatum) of the geographic center of a Location. Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive.
Exemples -121.1761111
Type Propriété
Nom du Terme dwc:footprintSpatialFit
IRI du terme http://rs.tdwg.org/dwc/terms/footprintSpatialFit
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/footprintSpatialFit-2020-08-20
Label Ajustement de l'emprise au sol
required: No -- repeatable: Yes
Définition The ratio of the area of the footprint (footprintWKT) to the area of the true (original, or most specific) spatial representation of the Location. Legal values are 0, greater than or equal to 1, or undefined. A value of 1 is an exact match or 100% overlap. A value of 0 should be used if the given footprint does not completely contain the original representation. The footprintSpatialFit is undefined (and should be left empty) if the original representation is a point without uncertainty and the given georeference is not that same point (without uncertainty). If both the original and the given georeference are the same point, the footprintSpatialFit is 1.
notes Des explications détaillées avec des exemples illustrés figurent dans le document 'Georeferencing Best Practices', par Chapman et Wieczorek, 2020 (https://doi.org/10.15468/doc-gg7h-s853).
Exemples 0, 1, 1.5708
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme dwc:footprintSRS
IRI du terme http://rs.tdwg.org/dwc/terms/footprintSRS
Modifié 2020-08-23
Label SRS de l'emprise au sol
required: No -- repeatable: Yes
Définition A Well-Known Text (WKT) representation of the Spatial Reference System (SRS) for the footprintWKT of the Location. Do not use this term to describe the SRS of the decimalLatitude and decimalLongitude, even if it is the same as for the footprintWKT - use the geodeticDatum instead.
Exemples GEOGCS["GCS_WGS_1984", DATUM["D_WGS_1984", SPHEROID["WGS_1984",6378137,298.257223563]], PRIMEM["Greenwich",0], UNIT["Degree",0.0174532925199433]] (WKT for the standard WGS84 Spatial Reference System EPSG:4326).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-07-15_34
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:footprintWKT
IRI du terme http://rs.tdwg.org/dwc/terms/footprintWKT
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/footprintWKT-2017-10-06
Label WKT de l'emprise au sol
required: No -- repeatable: Yes
Définition A Well-Known Text (WKT) representation of the shape (footprint, geometry) that defines the Location. A Location may have both a point-radius representation (see decimalLatitude) and a footprint representation, and they may differ from each other.
Exemples POLYGON ((10 20, 11 20, 11 21, 10 21, 10 20)) (la délimitation d'un degré avec des coins opposés à longitude=10, latitude=20 et longitude=11, latitude=21)
Type Propriété
Nom du Terme dwc:geodeticDatum
IRI du terme http://rs.tdwg.org/dwc/terms/geodeticDatum
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/geodeticDatum-2017-10-06
Label Système géodésique
required: No -- repeatable: Yes
Définition The ellipsoid, geodetic datum, or spatial reference system (SRS) upon which the geographic coordinates given in decimalLatitude and decimalLongitude as based.
notes Recommended best practice is to use the EPSG code of the SRS, if known. Otherwise use a controlled vocabulary for the name or code of the geodetic datum, if known. Otherwise use a controlled vocabulary for the name or code of the ellipsoid, if known. If none of these is known, use the value unknown.
Exemples EPSG:4326, WGS84, NAD27, Campo Inchauspe, European 1950, Clarke 1866, unknown
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:georeferencedBy
IRI du terme http://rs.tdwg.org/dwc/terms/georeferencedBy
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/georeferencedBy-2017-10-06
Label Géoréférencé par
required: No -- repeatable: Yes
Définition A list (concatenated and separated) of names of people, groups, or organizations who determined the georeference (spatial representation) for the Location.
notes La pratique optimale recommandée consiste à séparer les valeurs d'une liste par une barre verticale ( | ).
Exemples Brad Millen (ROM), Kristina Yamamoto | Janet Fang
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-10-30_16
Nom du Terme dwc:georeferenceProtocol
IRI du terme http://rs.tdwg.org/dwc/terms/georeferenceProtocol
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/georeferenceProtocol-2020-08-20
Label Protocole de géoréférencement
required: No -- repeatable: Yes
Définition Une description ou une référence aux méthodes utilisées pour déterminer l'emprise au sol, les coordonnées et les incertitudes.
Exemples Georeferencing Quick Reference Guide (Zermoglio et al. 2020, https://doi.org/10.35035/e09p-h128)
Type Propriété
Nom du Terme dwc:georeferenceRemarks
IRI du terme http://rs.tdwg.org/dwc/terms/georeferenceRemarks
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/georeferenceRemarks-2017-10-06
Label Remarques sur le géoréférencement
required: No -- repeatable: Yes
Définition Notes or comments about the spatial description determination, explaining assumptions made in addition or opposition to the those formalized in the method referred to in georeferenceProtocol.
Exemples Assumed distance by road (Hwy. 101).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:georeferenceSources
IRI du terme http://rs.tdwg.org/dwc/terms/georeferenceSources
Modifié 2020-10-28
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/georeferenceSources-2020-10-28
Label Sources du géoréférencement
required: No -- repeatable: Yes
Définition A list (concatenated and separated) of maps, gazetteers, or other resources used to georeference the Location, described specifically enough to allow anyone in the future to use the same resources.
notes La pratique optimale recommandée consiste à séparer les valeurs d'une liste par une barre verticale ( | ).
Exemples https://www.geonames.org/, USGS 1:24000 Florence Montana Quad 1967 | Terrametrics 2008 on Google Earth, GeoLocate
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-10-30_16
Nom du Terme dwc:georeferenceVerificationStatus
IRI du terme http://rs.tdwg.org/dwc/terms/georeferenceVerificationStatus
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/georeferenceVerificationStatus-2017-10-06
Label Statut de vérification du géoréférencement
required: No -- repeatable: Yes
Définition A categorical description of the extent to which the georeference has been verified to represent the best possible spatial description.
notes La pratique optimale recommandée est d'utiliser un vocabulaire contrôlé.
Exemples requires verification, verified by collector, verified by curator
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-07-15_34
Nom du Terme dwc:higherGeography
IRI du terme http://rs.tdwg.org/dwc/terms/higherGeography
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/higherGeography-2017-10-06
Label Géographie supérieure
required: No -- repeatable: Yes
Définition A list (concatenated and separated) of geographic names less specific than the information captured in the locality term.
notes La pratique optimale recommandée est de séparer les valeurs dans une liste par des barres verticales ( | ), les termes étant classés du moins précis au plus précis.
Exemples North Atlantic Ocean. South America | Argentina | Patagonia | Parque Nacional Nahuel Huapi | Neuquén | Los Lagos (with accompanying values South America in continent, Argentina in country, Neuquén in stateProvince, and Los Lagos in county.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-10-30_16
Nom du Terme dwc:higherGeographyID
IRI du terme http://rs.tdwg.org/dwc/terms/higherGeographyID
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/higherGeographyID-2017-10-06
Label Identifiant de la géographie supérieure
required: No -- repeatable: Yes
Définition An identifier for the geographic region within which the Location occurred.
notes La pratique optimale recommandée consiste à utiliser un identifiant permanent issu d'un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples http://vocab.getty.edu/tgn/1002002 (Antártida e Islas del Atlántico Sur, Territorio Nacional de la Tierra del Fuego, Argentina).
Type Propriété
Nom du Terme dwc:island
IRI du terme http://rs.tdwg.org/dwc/terms/island
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/island-2017-10-06
Label Île
required: No -- repeatable: Yes
Définition The name of the island on or near which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Nosy Be, Bikini Atoll, Vancouver, Viti Levu, Zanzibar
Type Propriété
Nom du Terme dwc:islandGroup
IRI du terme http://rs.tdwg.org/dwc/terms/islandGroup
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/islandGroup-2017-10-06
Label Groupement d'îles
required: No -- repeatable: Yes
Définition The name of the island group in which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Alexander Archipelago, Archipiélago Diego Ramírez, Seychelles
Type Propriété
Nom du Terme dwc:locality
IRI du terme http://rs.tdwg.org/dwc/terms/locality
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/locality-2017-10-06
Label Localité
required: No -- repeatable: Yes
Définition The specific description of the place. Less specific geographic information can be provided in other geographic terms (higherGeography, continent, country, stateProvince, county, municipality, waterBody, island, islandGroup). This term may contain information modified from the original to correct perceived errors or standardize the description.
Exemples Bariloche, 25 km NNE via Ruta Nacional 40 (=Ruta 237).
Type Propriété
Nom du Terme dwc:locationAccordingTo
IRI du terme http://rs.tdwg.org/dwc/terms/locationAccordingTo
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/locationAccordingTo-2017-10-06
Label Localité selon
required: No -- repeatable: Yes
Définition Information about the source of this Location information. Could be a publication (gazetteer), institution, or team of individuals.
Exemples Getty Thesaurus of Geographic Names, GADM
Type Propriété
Nom du Terme dwc:locationID
IRI du terme http://rs.tdwg.org/dwc/terms/locationID
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/locationID-2017-10-06
Label Identifiant de la localité
required: No -- repeatable: Yes
Définition An identifier for the set of location information (data associated with dcterms:Location). May be a global unique identifier or an identifier specific to the data set.
Exemples https://opencontext.org/subjects/768A875F-E205-4D0B-DE55-BAB7598D0FD1
Type Propriété
Nom du Terme dwc:locationRemarks
IRI du terme http://rs.tdwg.org/dwc/terms/locationRemarks
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/locationRemarks-2017-10-06
Label Remarques sur la localité
required: No -- repeatable: Yes
Définition Comments or notes about the Location.
Exemples under water since 2005
Type Propriété
Nom du Terme Iptc4xmpExt:LocationShown
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/LocationShown
Modifié 2020-01-27
Label Location Shown
required: No -- repeatable: Yes
Définition A location the content of the item is about. For photos that is a location shown in the image.
Utilisation The location that is depicted the media content, irrespective of the location at which the resource has been created.
Type Propriété
Nom du Terme dwc:maximumDepthInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/maximumDepthInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/maximumDepthInMeters-2017-10-06
Label Profondeur maximale en mètres
required: No -- repeatable: Yes
Définition La plus grande profondeur d'une plage de profondeur sous la surface locale, en mètres.
Exemples 0, 200
Type Propriété
Nom du Terme dwc:maximumDistanceAboveSurfaceInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/maximumDistanceAboveSurfaceInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/maximumDistanceAboveSurfaceInMeters-2017-10-06
Label Distance maximale au-dessus de la surface en mètres
required: No -- repeatable: Yes
Définition La plus grande distance d'une plage de distances par rapport à une surface de référence dans la dimension verticale, en mètres. Utilisez des valeurs positives pour les emplacements situés au-dessus de la surface, et des valeurs négatives pour les emplacements situés en dessous. Si des mesures de profondeur sont données, la surface de référence est l'emplacement donné par la profondeur, sinon la surface de référence est l'emplacement donné par l'élévation.
Exemples -1.5 (below the surface). 4.2 (above the surface). For a 1.5 meter sediment core from the bottom of a lake (at depth 20m) at 300m elevation: verbatimElevation: 300m minimumElevationInMeters: 300, maximumElevationInMeters: 300, verbatimDepth: 20m, minimumDepthInMeters: 20, maximumDepthInMeters: 20, minimumDistanceAboveSurfaceInMeters: 0, maximumDistanceAboveSurfaceInMeters: -1.5.
Type Propriété
Nom du Terme dwc:maximumElevationInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/maximumElevationInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/maximumElevationInMeters-2017-10-06
Label Altitude maximale en mètres
required: No -- repeatable: Yes
Définition Limite supérieure de la plage d'élévation (altitude, généralement au-dessus du niveau de la mer), en mètres.
Exemples -205, 1236
Type Propriété
Nom du Terme dwc:minimumDepthInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/minimumDepthInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/minimumDepthInMeters-2017-10-06
Label Profondeur minimale en mètres
required: No -- repeatable: Yes
Définition La plus petite profondeur d'une plage de profondeur sous la surface locale, en mètres.
Exemples 0, 100
Type Propriété
Nom du Terme dwc:minimumDistanceAboveSurfaceInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/minimumDistanceAboveSurfaceInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/minimumDistanceAboveSurfaceInMeters-2017-10-06
Label Distance minimale au-dessus de la surface en mètres
required: No -- repeatable: Yes
Définition La plus petite distance d'une plage de distances par rapport à une surface de référence dans la dimension verticale, en mètres. Utilisez des valeurs positives pour les emplacements situés au-dessus de la surface, et des valeurs négatives pour les emplacements situés en dessous. Si des mesures de profondeur sont données, la surface de référence est l'emplacement donné par la profondeur, sinon la surface de référence est l'emplacement donné par l'élévation.
Exemples -1.5 (below the surface). 4.2 (above the surface). For a 1.5 meter sediment core from the bottom of a lake (at depth 20m) at 300m elevation: verbatimElevation: 300m minimumElevationInMeters: 300, maximumElevationInMeters: 300, verbatimDepth: 20m, minimumDepthInMeters: 20, maximumDepthInMeters: 20, minimumDistanceAboveSurfaceInMeters: 0, maximumDistanceAboveSurfaceInMeters: -1.5.
Type Propriété
Nom du Terme dwc:minimumElevationInMeters
IRI du terme http://rs.tdwg.org/dwc/terms/minimumElevationInMeters
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/minimumElevationInMeters-2017-10-06
Label Altitude minimale en mètres
required: No -- repeatable: Yes
Définition Limite inférieure de la plage d'élévation (altitude, généralement au-dessus du niveau de la mer), en mètres.
Exemples -100, 802
Type Propriété
Nom du Terme dwc:municipality
IRI du terme http://rs.tdwg.org/dwc/terms/municipality
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/municipality-2017-10-06
Label Municipality
required: No -- repeatable: Yes
Définition The full, unabbreviated name of the next smaller administrative region than county (city, municipality, etc.) in which the Location occurs. Do not use this term for a nearby named place that does not contain the actual location.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Holzminden, Araçatuba, Ga-Segonyana
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme dwc:pointRadiusSpatialFit
IRI du terme http://rs.tdwg.org/dwc/terms/pointRadiusSpatialFit
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/pointRadiusSpatialFit-2020-08-20
Label Ajustement du centre et du rayon
required: No -- repeatable: Yes
Définition The ratio of the area of the point-radius (decimalLatitude, decimalLongitude, coordinateUncertaintyInMeters) to the area of the true (original, or most specific) spatial representation of the Location. Legal values are 0, greater than or equal to 1, or undefined. A value of 1 is an exact match or 100% overlap. A value of 0 should be used if the given point-radius does not completely contain the original representation. The pointRadiusSpatialFit is undefined (and should be left empty) if the original representation is a point without uncertainty and the given georeference is not that same point (without uncertainty). If both the original and the given georeference are the same point, the pointRadiusSpatialFit is 1.
notes Des explications détaillées avec des exemples illustrés figurent dans le document 'Georeferencing Best Practices', par Chapman et Wieczorek, 2020 (https://doi.org/10.15468/doc-gg7h-s853).
Exemples 0, 1, 1.5708
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme Iptc4xmpExt:ProvinceState
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/ProvinceState
Modifié 2020-01-27
Label Province or State
required: No -- repeatable: Yes
Définition The name of a subregion of a country - a province or state - of a location. This element is at the third level of a top-down geographical hierarchy.
Utilisation OPTIONALLY, the geographic unit immediately below the country level (individual states in federal countries, provinces, or other administrative units) in which the subject of the media resource (e. g., species, habitats, or events) were located (if such information is available in separate fields).
Type Propriété
Nom du Terme dwc:stateProvince
IRI du terme http://rs.tdwg.org/dwc/terms/stateProvince
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/stateProvince-2017-10-06
Label State Province
required: No -- repeatable: Yes
Définition The name of the next smaller administrative region than country (state, province, canton, department, region, etc.) in which the Location occurs.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Montana, Minas Gerais, Córdoba
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme Iptc4xmpExt:Sublocation
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/Sublocation
Modifié 2020-01-27
Label Sublocation
required: No -- repeatable: Yes
Définition Name of a sublocation. This sublocation name could either be the name of a sublocation to a city or the name of a well known location or (natural) monument outside a city. In the sense of a sublocation to a city this element is at the fifth level of a top-down geographical hierarchy.
Utilisation Free-form text location details of the location of the subjects, down to the village, forest, or geographic feature etc., below the Iptc4xmpExt:City place name, especially information that could not be found in a gazetteer.
Type Propriété
Nom du Terme dwc:verbatimCoordinates
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimCoordinates
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimCoordinates-2017-10-06
Label Verbatim des coordonnées
required: No -- repeatable: Yes
Définition The verbatim original spatial coordinates of the Location. The coordinate ellipsoid, geodeticDatum, or full Spatial Reference System (SRS) for these coordinates should be stored in verbatimSRS and the coordinate system should be stored in verbatimCoordinateSystem.
Exemples 41 05 54S 121 05 34W, 17T 630000 4833400
Type Propriété
Nom du Terme dwc:verbatimCoordinateSystem
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimCoordinateSystem
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimCoordinateSystem-2020-08-20
Label Verbatim du système de coordonnées
required: No -- repeatable: Yes
Définition The coordinate format for the verbatimLatitude and verbatimLongitude or the verbatimCoordinates of the Location.
notes La pratique optimale recommandée est d'utiliser un vocabulaire contrôlé.
Exemples decimal degrees, degrees decimal minutes, degrees minutes seconds, UTM
Type Propriété
Nom du Terme dwc:verbatimDepth
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimDepth
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimDepth-2017-10-06
Label Verbatim de la profondeur
required: No -- repeatable: Yes
Définition La description originale de la profondeur sous la surface locale.
Exemples 100-200 m
Type Propriété
Nom du Terme dwc:verbatimElevation
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimElevation
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimElevation-2017-10-06
Label Verbatim de l'altitude
required: No -- repeatable: Yes
Définition La description originale de l'élévation (altitude, généralement au-dessus du niveau de la mer) du lieu.
Exemples 100-200 m
Type Propriété
Nom du Terme dwc:verbatimLatitude
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimLatitude
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimLatitude-2017-10-06
Label Verbatim de la latitude
required: No -- repeatable: Yes
Définition The verbatim original latitude of the Location. The coordinate ellipsoid, geodeticDatum, or full Spatial Reference System (SRS) for these coordinates should be stored in verbatimSRS and the coordinate system should be stored in verbatimCoordinateSystem.
Exemples 41 05 54.03S
Type Propriété
Nom du Terme dwc:verbatimLocality
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimLocality
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimLocality-2017-10-06
Label Verbatim de la localité
required: No -- repeatable: Yes
Définition La description textuelle originale du lieu.
Exemples 25 km NNE Bariloche por R. Nac. 237
Type Propriété
Nom du Terme dwc:verbatimLongitude
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimLongitude
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimLongitude-2017-10-06
Label Verbatim de la longitude
required: No -- repeatable: Yes
Définition The verbatim original longitude of the Location. The coordinate ellipsoid, geodeticDatum, or full Spatial Reference System (SRS) for these coordinates should be stored in verbatimSRS and the coordinate system should be stored in verbatimCoordinateSystem.
Exemples 121d 10' 34" W
Type Propriété
Nom du Terme dwc:verbatimSRS
IRI du terme http://rs.tdwg.org/dwc/terms/verbatimSRS
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/verbatimSRS-2017-10-06
Label Verbatim du Système de Référence Spatiale
required: No -- repeatable: Yes
Définition The ellipsoid, geodetic datum, or spatial reference system (SRS) upon which coordinates given in verbatimLatitude and verbatimLongitude, or verbatimCoordinates are based.
notes Recommended best practice is to use the EPSG code of the SRS, if known. Otherwise use a controlled vocabulary for the name or code of the geodetic datum, if known. Otherwise use a controlled vocabulary for the name or code of the ellipsoid, if known. If none of these is known, use the value unknown.
Exemples unknown, EPSG:4326, WGS84, NAD27, Campo Inchauspe, European 1950, Clarke 1866
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:waterBody
IRI du terme http://rs.tdwg.org/dwc/terms/waterBody
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/waterBody-2017-10-06
Label Étendue d'eau
required: No -- repeatable: Yes
Définition The name of the water body in which the Location occurs. Recommended best practice is to use a controlled vocabulary such as the Getty Thesaurus of Geographic Names.
notes La pratique optimale recommandée consiste à utiliser un vocabulaire contrôlé tel que le Getty Thesaurus of Geographic Names.
Exemples Indian Ocean, Baltic Sea, Hudson River, Lago Nahuel Huapi
Type Propriété
Nom du Terme Iptc4xmpExt:WorldRegion
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/WorldRegion
Modifié 2020-01-27
Label World Region
required: No -- repeatable: Yes
Définition The name of a world region of a location. This element is at the first (topI) level of a topdown geographical hierarchy.
Utilisation Name of a world region in some high level classification, such as names for continents, waterbodies, or island groups, whichever is most appropriate. The terms preferably are derived from a controlled vocabulary.
notes The equivalent DarwinCore fields here forces primary metadata providers to classify world region terms into separate properties for "continent", "waterbody", "islandGroup". By contrast, the Iptc4xmpExt vocabulary only specifies that a World Region is something at the top of a hierarchy of locations.
Type Propriété

7.6 Temporal Coverage Vocabulary

Nom du Terme xmp:CreateDate
IRI du terme http://ns.adobe.com/xap/1.0/CreateDate
Modifié 2021-10-05
Label Original Date and Time
required: No -- repeatable: No
Définition The date and time the resource was created. For a digital file, this need not match a file-system creation time. For a freshly created resource, it should be close to that time, modulo the time taken to write the file. Later file transfer, copying, and so on, can make the file-system time arbitrarily different.
Utilisation The date of the creation of the original resource from which the digital media was derived or created. The date and time MUST comply with the World Wide Web Consortium (W3C) datetime practice, https://www.w3.org/TR/NOTE-datetime, which requires that date and time representation correspond to ISO 8601:1998, but with year fields always comprising 4 digits. This makes datetime records compliant with 8601:2004, https://www.iso.org/standard/40874.html. AC datetime values MAY also follow 8601:2004 for ranges by separating two IS0 8601 datetime fields by a solidus ("forward slash", '/'). When applied to a media resource with temporal extent such as audio or video, this property indicates the startTime of the recording.
notes What constitutes "original" is determined by the metadata author. Example: Digitization of a photographic slide of a map would normally give the date at which the map was created; however a photographic work of art including the same map as its content may give the date of the original photographic exposure. Imprecise or unknown dates can be represented as ISO dates or ranges. Compare also Date and Time Digitized in the Resource Creation Vocabulary. See also the wikipedia IS0 8601 entry, https://en.wikipedia.org/wiki/ISO_8601, for further explanation and examples.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme dcterms:temporal
IRI du terme http://purl.org/dc/terms/temporal
Modifié 2020-01-27
IRI de la version du Terme http://dublincore.org/usage/terms/history/#temporal-003
Label Couverture Temporelle
required: No -- repeatable: No
Définition Temporal characteristics of the resource.
Utilisation The coverage (extent or scope) of the content of the resource. Temporal coverage will typically include temporal period (a period label, date, or date range) to which the subjects of the media or media collection relate. If dates are mentioned, they SHOULD follow ISO 8601. When the resource is a Collection, this refers to the temporal coverage of the collection. Following dcterms:temporal, the value MUST be a URI.
notes See the DCMI User Guide dcterms:temporal entry, https://github.com/dcmi/repository/blob/master/mediawiki_wiki/User_Guide/Publishing_Metadata.md#dctermstemporal, for an example. dc:coverage may be used for string values of temporal coverage, but use the Geography Vocabulary for geographic coverage. String examples for use with dc:coverage include "Jurassic", "Elizabethan", "Spring, 1957". 2008-01-01/2008-06-30. If the resource is video or audio, it refers to the time span, if any, depicted by the resource. For live-media this is closely related to Original Date and Time (Example: the time depicted by a time-lapse video file of organism development), but for media with fictional content it is not.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:timeOfDay
IRI du terme http://rs.tdwg.org/ac/terms/timeOfDay
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/timeOfDay-2020-01-27
Label Time of Day
required: No -- repeatable: No
Définition Free text information beyond exact clock times.
notes Examples in English: afternoon, twilight.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.7 Taxonomic Coverage Vocabulary

Nom du Terme dwc:dateIdentified
IRI du terme http://rs.tdwg.org/dwc/terms/dateIdentified
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/dateIdentified-2020-08-12
Label Date d'identification
required: No -- repeatable: No
Définition The date on which the subject was determined as representing the Taxon.
Utilisation The date on which the person(s) given under Identified By applied a Scientific Taxon Name to the resource.
notes La pratique optimale recommandée est d'utiliser une date conforme à la norme ISO 8601-1:2019.
Exemples 1963-03-08T14:07-0600 (8 Mar 1963 at 2:07pm in the time zone six hours earlier than UTC). 2009-02-20T08:40Z (20 February 2009 8:40am UTC). 2018-08-29T15:19 (3:19pm local time on 29 August 2018). 1809-02-12 (some time during 12 February 1809). 1906-06 (some time in June 1906). 1971 (some time in the year 1971). 2007-03-01T13:00:00Z/2008-05-11T15:30:00Z (some time during the interval between 1 March 2007 1pm UTC and 11 May 2008 3:30pm UTC). 1900/1909 (some time during the interval between the beginning of the year 1900 and the end of the year 1909). 2007-11-13/15 (some time in the interval between 13 November 2007 and 15 November 2007).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:identificationQualifier
IRI du terme http://rs.tdwg.org/dwc/terms/identificationQualifier
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/identificationQualifier-2017-10-06
Label Qualificatif de l'identification
required: No -- repeatable: Yes
Définition A brief phrase or a standard term ("cf.", "aff.") to express the determiner's doubts about the Identification.
Utilisation A brief phrase or a standard abbreviation ("cf. genus", "cf. species", "cf. var.", "aff. species", etc.) to express the determiner's doubts with respect to a specified taxonomic rank about the identification given in Scientific Taxon Name.
notes Splitting identification qualification and Scientific Taxon Name into separate fields is recommended practice in cases where only a single taxon name is available, or if the exchange format is able to keep relations between multiple names and identification qualifiers. Where the exchange format only supports simple multiplicities, a media item with multiple Scientific Taxon Names, some with, some without identification qualifiers, may have to be transferred with "cf." or "aff." qualifiers remaining embedded in the Scientific Taxon Name. Example: For the determinations "cf. Fusarium oxysporum f. sp. palmarum", "Fusarium cf. oxysporum f. sp. palmarum", "Fusarium oxysporum cf. f. sp. palmarum" the Scientific Taxon Name would always be "Fusarium oxysporum f. sp. palmarum", with Identification Qualifier "cf. genus", "cf. species" and "cf. f.sp.", respectively. In most cases only the lowest taxon is in doubt, but cases exist where good reasons exist to suspect a specific or even infraspecific determination, without having a save generic identification.
Exemples aff. agrifolia var. oxyadenia (for Quercus aff. agrifolia var. oxyadenia with accompanying values Quercus in genus, agrifolia in specificEpithet, oxyadenia in infraspecificEpithet, and var. in taxonRank. cf. var. oxyadenia for Quercus agrifolia cf. var. oxyadenia with accompanying values Quercus in genus, agrifolia in specificEpithet, oxyadenia in infraspecificEpithet, and var. in taxonRank.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dwc:identifiedBy
IRI du terme http://rs.tdwg.org/dwc/terms/identifiedBy
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/identifiedBy-2017-10-06
Label Identifié par
required: No -- repeatable: Yes
Définition A list (concatenated and separated) of names of people, groups, or organizations who assigned the Taxon to the subject.
Utilisation The name(s) of the person(s) who applied the Scientific Taxon Name to the media item or the occurrence represented in the media item.
notes La pratique optimale recommandée consiste à séparer les valeurs d'une liste par une barre verticale ( | ).
Exemples James L. Patton, Theodore Pappenfuss | Robert Macey
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-10-30_16
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:lifeStage
IRI du terme http://rs.tdwg.org/dwc/terms/lifeStage
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/lifeStage-2017-10-06
Label Subject Life Stage
required: No -- repeatable: Yes
Définition The age class or life stage of the biological individual(s) at the time the Occurrence was recorded.
Utilisation A description of the life-cycle stage of any organisms featured within the media, when relevant to the subject of the media, e. g., larvae, juvenile, adult.
notes La pratique optimale recommandée est d'utiliser un vocabulaire contrôlé.
Exemples egg, eft, juvenile, adult
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dwc:nameAccordingTo
IRI du terme http://rs.tdwg.org/dwc/terms/nameAccordingTo
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/nameAccordingTo-2017-10-06
Label Nom selon
required: No -- repeatable: Yes
Définition La référence à la source dans laquelle la délimitation du taxon concept est définie ou suggérée - traditionnellement signifiée par le latin "sensu" ou "sec." (de secundum qui signifie "selon"). Pour les taxons résultant d'identifications, une référence aux clés, monographies, experts et autres sources doit être donnée.
Utilisation The taxonomic authority used to apply the name to the taxon, e. g., a person, book or web service.
notes Examples are "Flora of North America", "Landrum 1981, Monograph of the Genus Myrceugenia (Myrtaceae)", "Peterson Field Guide to Birds of North America", or "Expert identification by J.Smith".
Exemples McCranie, J. R., D. B. Wake, and L. D. Wilson. 1996. The taxonomic status of Bolitoglossa schmidti, with comments on the biology of the Mesoamerican salamander Bolitoglossa dofleini (Caudata: Plethodontidae). Carib. J. Sci. 32:395-398., Werner Greuter 2008. Lilljeborg 1861, Upsala Univ. Arsskrift, Math. Naturvet., pp. 4, 5
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:otherScientificName
IRI du terme http://rs.tdwg.org/ac/terms/otherScientificName
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/otherScientificName-2020-01-27
Label Other Scientific Name
required: No -- repeatable: Yes
Définition One or several Scientific Taxon Names that are synonyms to the Scientific Taxon Name may be provided here.
notes The primary purpose of this is in support of resource discovery, not developing a taxonomic synonymy. Misidentification or misspellings may thus be of interest. Where multiple taxa are present in a resource and multiple Scientific Taxon Names are given, the association between synonyms and names may not be deducible from the AC record alone.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dwc:preparations
IRI du terme http://rs.tdwg.org/dwc/terms/preparations
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/preparations-2017-10-06
Label Subject Preparation Technique
required: No -- repeatable: No
Définition A list (concatenated and separated) of preparations and preservation methods for a specimen.
Utilisation Free form text describing the techniques used to prepare the subject of the media, prior to or while creating the media resource.
notes Examples for such techniques are: Insect under CO2, cooled to immobility, preservation with ethanol or formaldehyde. See also Resource Creation Technique for technical aspects of digital media object creation.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2014-10-30_16
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-09-13_41
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2025-06-12_44
Nom du Terme dwc:scientificName
IRI du terme http://rs.tdwg.org/dwc/terms/scientificName
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/scientificName-2017-10-06
Label Scientific Taxon Name
required: No -- repeatable: Yes
Définition The full scientific name, with authorship and date information if known. When forming part of an Identification, this should be the name in lowest level taxonomic rank that can be determined. This term should not contain identification qualifications, which should instead be supplied in the IdentificationQualifier term.
Utilisation Scientific names of taxa represented in the media resource (with date and name authorship information if available) of the lowest level taxonomic rank that can be applied.
notes The Scientific Taxon Name may possibly be of a higher rank, e.g., a genus or family name, if this is the most specific identification available. Where multiple taxa are the subject of the media item, multiple names may be given. If possible, add this information here even if the title or caption of the resource already contains scientific taxon names. Where the list of scientific taxon names is impractically large (e.g., media collections or identification tools), the number of taxa should be given in Taxon Count (see below). If possible, avoid repeating the Taxonomic Coverage here. Do not use abbreviated Genus names ("P. vulgaris"). It is recommended to provide author citation to scientific names, to avoid ambiguities in the presence of homonyms (the same name created by different authors for different taxa). Identifier qualifications should be supplied in the Identification Qualifier term rather than here (i. e. "Abies cf. alba" is deprecated, to be replaced with Scientific Taxon Name = "Abies alba" and Identification Qualifier = "cf. species").
Exemples Coleoptera (order). Vespertilionidae (family). Manis (genus). Ctenomys sociabilis (genus + specificEpithet). Ambystoma tigrinum diaboli (genus + specificEpithet + infraspecificEpithet). Roptrocerus typographi (Györfi, 1952) (genus + specificEpithet + scientificNameAuthorship), Quercus agrifolia var. oxyadenia (Torr.) J.T. Howell (genus + specificEpithet + taxonRank + infraspecificEpithet + scientificNameAuthorship).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2023-06-28_40
Nom du Terme dwc:scientificNameID
IRI du terme http://rs.tdwg.org/dwc/terms/scientificNameID
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/scientificNameID-2017-10-06
Label Identifiant du nom scientifique
required: No -- repeatable: Yes
Définition Un identifiant pour les détails nomenclaturaux (et non taxonomiques) d'un nom scientifique.
notes See dwc:scientificName.
Exemples urn:lsid:ipni.org:names:37829-1:1.3
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dwc:sex
IRI du terme http://rs.tdwg.org/dwc/terms/sex
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/sex-2017-10-06
Label Subject Sex
required: No -- repeatable: Yes
Définition The sex of the biological individual(s) represented in the Occurrence.
Utilisation A description of the sex of any organisms featured within the media, when relevant to the subject of the media, e. g., male, female, hermaphrodite, dioecious.
notes La pratique optimale recommandée est d'utiliser un vocabulaire contrôlé.
Exemples female, male, hermaphrodite
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:subjectOrientation
IRI du terme http://rs.tdwg.org/ac/terms/subjectOrientation
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subjectOrientation-2023-09-05
Label Subject Orientation
required: No -- repeatable: No
Définition Specific orientation (= direction, view angle) of the subject represented in the media resource with respect to the acquisition device, denoted by an IRI.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subjectOrientation. In text-based systems such as tables, IRI values MUST be in unabbreviated form.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2022-02-23_37
Nom du Terme ac:subjectOrientationLiteral
IRI du terme http://rs.tdwg.org/ac/terms/subjectOrientationLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subjectOrientationLiteral-2023-09-05
Label Subject Orientation (literal)
required: No -- repeatable: No
Définition Specific orientation (= direction, view angle) of the subject represented in the media resource with respect to the acquisition device, denoted by a controlled value string.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subjectOrientation. It is best practice to use ac:subjectOrientation instead of ac:subjectOrientationLiteral whenever practical.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2022-02-23_37
Nom du Terme ac:subjectPart
IRI du terme http://rs.tdwg.org/ac/terms/subjectPart
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subjectPart-2023-09-05
Label Subject Part
required: No -- repeatable: No
Définition The portion or product of organism morphology, behaviour, environment, etc. that is either predominantly shown or particularly well exemplified by the media resource, denoted by an IRI.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subjectPart. In text-based systems such as tables, IRI values MUST be in unabbreviated form.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2022-02-23_37
Nom du Terme ac:subjectPartLiteral
IRI du terme http://rs.tdwg.org/ac/terms/subjectPartLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/subjectPartLiteral-2023-09-05
Label Subject Part (literal)
required: No -- repeatable: No
Définition The portion or product of organism morphology, behaviour, environment, etc. that is either predominantly shown or particularly well exemplified by the media resource, denoted by a controlled value string.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core subjectPart. It is best practice to use ac:subjectPart instead of ac:subjectPartLiteral whenever practical.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2022-02-23_37
Nom du Terme ac:taxonCount
IRI du terme http://rs.tdwg.org/ac/terms/taxonCount
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/taxonCount-2020-01-27
Label Taxon Count
required: No -- repeatable: No
Définition An exact or estimated number of taxa at the lowest applicable taxon rank (usually species or infraspecific) represented by the media resource (item or collection).
Utilisation The count SHOULD contain only the taxa covered fully or primarily by the resource. This SHOULD be a single integer number.
notes Primarily intended for resource collections and singular resources dealing with sets of taxa (e. g., identification tools, videos). It is recommended to give an exact or estimated number of specific taxa when a complete list of taxa is not available or practical. For a taxon page and most images this will be "1", i. e. other taxa mentioned on the side or in the background should not be counted. However, sometimes a resource may illustrate an ecological or behavioral entity with multiple species, e. g., a host-pathogen interaction; taxon count would then indicate the known number of species in this interaction. Leave the field empty if you cannot estimate the information (do not enter 0). Additional taxon counts at higher levels (e. g. how many families are covered by a digital Fauna) should be given verbatim in the resource description, not here.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:taxonCoverage
IRI du terme http://rs.tdwg.org/ac/terms/taxonCoverage
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/taxonCoverage-2020-01-27
Label Taxon Coverage
required: No -- repeatable: No
Définition A higher taxon (e. g., a genus, family, or order) at the level of the genus or higher, that covers all taxa that are the primary subject of the resource (which may be a media item or a collection).
notes Example: Where the subject of an image is several species of ducks with trees visible in the background, Taxon Coverage would still be Anatidae (and not Biota). Example: "Aves" for a bird key or a bird image collection. Do not add a rank ("Class Aves") in this field. Note that this somewhat expands the usage of ncd:taxonCoverage which, however has not yet been adopted by TDWG, and which specifies at the Family level or higher. For collections it is recommended to follow ncd:taxonCoverage to avoid conflicts between an AC record and a record arising from use of the un-adopted NCD. If the resource contains a single taxon, this should be placed in Scientific Taxon Name. In this case Taxon Coverage may be left empty, but if not, care should be taken that the entries do not conflict. Example: If Scientific Taxon Name is Quercus alba then Taxon Coverage, if provided at all, should be Quercus.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dwc:vernacularName
IRI du terme http://rs.tdwg.org/dwc/terms/vernacularName
Modifié 2020-08-23
IRI de la version du Terme http://rs.tdwg.org/dwc/terms/version/vernacularName-2017-10-06
Label Common Name
required: No -- repeatable: Yes
Définition Un nom commun ou vernaculaire.
Utilisation Common (= vernacular) names of the subject in one or several languages. The ISO 639-1 language code SHOULD be given in parentheses after the name if not all names are given by values of the Metadata Language term.
notes The ISO language code after the name should be formatted as in the following example: 'abete bianco (it); Tanne (de); White Fir (en)'. If names are known to be male- or female-specific, this may be specified as in: 'ewe (en-female); ram (en-male);'.
Exemples Andean Condor, Condor Andino, American Eagle, Gänsegeier
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.8 Resource Creation Vocabulary

Nom du Terme ac:captureDevice
IRI du terme http://rs.tdwg.org/ac/terms/captureDevice
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/captureDevice-2020-01-27
Label Capture Device
required: No -- repeatable: No
Définition Free form text describing the device or devices used to create the resource.
notes It is best practice to record the device; this may include a combination such as camera plus lens, or camera plus microscope. Examples: "Canon Supershot 2000", "Makroscan Scanner 2000", "Zeiss Axioscope with Camera IIIu", "SEM (Scanning Electron Microscope)".
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:digitizationDate
IRI du terme http://rs.tdwg.org/ac/terms/digitizationDate
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/digitizationDate-2020-01-27
Label Date and Time Digitized
required: No -- repeatable: No
Définition Date the first digital version was created, if different from Original Date and Time found in the Temporal Coverage Vocabulary.
Utilisation The date and time MUST comply with the World Wide Web Consortium (W3C) datetime practice, https://www.w3.org/TR/NOTE-datetime, which requires that date and time representation correspond to ISO 8601:1998, but with year fields always comprising 4 digits. This makes datetime records compliant with 8601:2004, https://www.iso.org/standard/40874.html. AC datetime values MAY also follow 8601:2004 for ranges by separating two IS0 8601 datetime fields by a solidus ("forward slash", '/'). Use the international (ISO/xml) format yyyy-mm-ddThh:mm (e. g. "2007-12-31" or "2007-12-31T14:59"). Where available, timezone information SHOULD be added.
notes This is often not the media creation or modification date. For example, if photographic prints have been scanned, the date of that scanning is what this term carries, but Original Date and Time is that depicted in the print. In the case of digital images containing EXIF, whereas the EXIF capture date does not contain time zone information, but EXIF GPSDateStamp and GPSTimeStamp may be relevant as these include time-zone information. See also Metadata Working Group Guidelines for Handling Image Metadata, Version 2.0 (November 2010), https://web.archive.org/web/20180919181934/http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf, which has best practice advice on handling time-zone-less EXIF date/time data. See also the Wikipedia IS0 8601 entry, https://en.wikipedia.org/wiki/ISO_8601, for further explanation and examples.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:frameRate
IRI du terme http://rs.tdwg.org/ac/terms/frameRate
Modifié 2022-02-23
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/frameRate-2022-02-23
Label Frame Rate
required: No -- repeatable: No
Définition The decimal fraction representing the frequency (rate) at which consecutive images (frames) were captured in real time for a moving image, expressed as the number of frames per second.
Utilisation This term represents the rate at which consecutive images were captured in real time, not the rate at which the media is encoded to play back the recording.
notes For example, in a recording where 60 consecutive images (frames) are captured for each second of the real-time recording, this would be 60. In a time-lapse recording where one image (frame) is recorded every 5 seconds of recording, this would be 0.2.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2022-02-23_38
Nom du Terme Iptc4xmpExt:LocationCreated
IRI du terme http://iptc.org/std/Iptc4xmpExt/2008-02-29/LocationCreated
Modifié 2020-01-27
Label Location Created
required: No -- repeatable: Yes
Définition The location the content of the item was created
Utilisation The location at which the media recording instrument was placed when the media was created.
notes The distinction between the location shown and created is often irrelevant, and metadata may be assumed to be referring to location shown. It is recommended that the Location Shown field above always be used when known. However, in the case of position data automatically recorded by the instrument (e. g. EXIF GPS data) Location Created should be used to maintain information accuracy. When one but not both of these locations are present, AC is silent about whether the provided one entails the other. A best practices document for a particular AC implementation might address this.
Type Propriété
Nom du Terme ac:resourceCreationTechnique
IRI du terme http://rs.tdwg.org/ac/terms/resourceCreationTechnique
Modifié 2020-10-13
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/resourceCreationTechnique-2020-10-13
Label Resource Creation Technique
required: No -- repeatable: No
Définition Information about technical aspects of the creation and digitization process of the resource. This includes modification steps ("retouching") after the initial resource capture.
notes Annotating whether and how a resource has been modified or edited significantly in ways that are not immediately obvious to, or expected by, consumers is of special significance. Examples for images are: Removing a distracting twig from a picture, moving an object to a different surrounding, changing the color in parts of the image, or blurring the background of an image. Modifications that are standard practice and expected or obvious are not necessary to document; examples of such practices include changing resolution, cropping, minor sharpening or overall color correction, and clearly perceptible modifications (e.g., addition of arrows or labels, or the placement of multiple pictures into a table.) If it is only known that significant modifications were made, but no details are known, a general statement like "Media may have been manipulated to improve appearance" may be appropriate. See also Subject Preparation Technique.
Exemples Encoding method or settings, numbers of channels, lighting, frames per second, data rate, interlaced or progressive, multiflash lighting, remote control, automatic interval exposure.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme mo:sample_rate
IRI du terme http://purl.org/ontology/mo/sample_rate
Modifié 2020-10-13
Label Sample Rate
required: No -- repeatable: No
Définition Associates a digital signal to its sample rate.
Utilisation Numeric value in hertz (Hz).
notes For example, a Service Access Point may have a specific resolution, quality, or format. “Sample rate” is distinct from the related concept of “bit rate” for compressed files such as MP3, and is applicable to both uncompressed and compressed files. See http://musicontology.com/specification/#term-sample_rate for additional information.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2020-10-13_31
Nom du Terme ac:associatedObservationReference
IRI du terme http://rs.tdwg.org/ac/terms/associatedObservationReference
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/associatedObservationReference-2020-01-27
Label Associated Observation Reference
required: No -- repeatable: Yes
Définition A reference to an observation associated with this resource.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:associatedSpecimenReference
IRI du terme http://rs.tdwg.org/ac/terms/associatedSpecimenReference
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/associatedSpecimenReference-2020-01-27
Label Associated Specimen Reference
required: No -- repeatable: Yes
Définition A reference to a specimen associated with this resource.
notes Supports finding a specimen resource, where additional information is available. If several resources relate to the same specimen, these are implicitly related. Examples: for NHM "BM 23974324" for a barcoded or "BM Smith 32" for a non-barcoded specimen; for UNITS: "TSB 28637"; for PMSL: "PMSL-Lepidoptera-2534781". Ideally this may be a URI identifying a specimen record that is available online.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:derivedFrom
IRI du terme http://rs.tdwg.org/ac/terms/derivedFrom
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/derivedFrom-2020-01-27
Label Derived From
required: No -- repeatable: Yes
Définition A reference to an original resource from which the current one is derived.
Utilisation Human readable, or doi number, or URL. Simple name of parent for human readable.
notes Derivation of one resource from another is of special interest for identification tools (e. g. a key from an unpublished data set, as in FRIDA, or a PDA key from a PC or web key) or web services (e. g. a name synonymization service being derived from a specific data set). It may very rarely also be known where one image or sound recording is derived from another (but compare the separate mechanism to be used for quality/resolution levels). Can be repeated if a montage of images.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:IDofContainingCollection
IRI du terme http://rs.tdwg.org/ac/terms/IDofContainingCollection
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/IDofContainingCollection-2020-01-27
Label ID of Containing Collection
required: No -- repeatable: Yes
Définition If the resource is contained in a Collection, this field identifies that Collection uniquely.
notes Repeatable: A media resource may be member of multiple collections. The form of the identifier is left to implementers of specific implementations.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:providerID
IRI du terme http://rs.tdwg.org/ac/terms/providerID
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/providerID-2020-01-27
Label Provider ID
required: No -- repeatable: No
Définition A globally unique ID of the provider of the current AC metadata record.
notes Only to be used if the annotated resource is not a provider itself - this item is for relating the resource to a provider, using an arbitrary code that is unique for a provider, contributing partner, or aggregator, or other roles (potentially defined by MARC, OAI) and by which the media resources are linked to the provider.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:relatedResourceID
IRI du terme http://rs.tdwg.org/ac/terms/relatedResourceID
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/relatedResourceID-2020-01-27
Label Related Resource ID
required: No -- repeatable: Yes
Définition Resource related in ways not specified through a collection, e.g., before-after images; time-lapse series; different orientations/angles of view
notes The value references a related media item. Examples of relations are: Images taken in a sequence or defined time series, an exposure or focus series (e.g. for stacking), different framing or views (top, side, bottom) of the same subject, or an overview plus several details. The property makes such related media items discoverable, but does not indicate the nature of this relationship. More specific properties may be defined in a later version of AC.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.10 Service Access Point Vocabulary

These terms are representation-dependent metadata, referring to specific digital representations of a resource (e.g., a specific resolution, quality, or format). They are used within whatever a particular AC implementation assigns to the value of ac:hasServiceAccessPoint, whose label is simply “Service Access Point.” Note that it is possible for an implementation to use syntactic conventions that avoid direct use of ac:hasServiceAccessPoint, as illustrated in the final example in the section Multiplicity/Cardinality in the Audiovisual Core Structure document.

Nom du Terme ac:accessURI
IRI du terme http://rs.tdwg.org/ac/terms/accessURI
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/accessURI-2020-01-27
Label Access URI
required: No -- repeatable: No
Définition A URI that uniquely identifies a service that provides a representation of the underlying resource.
Utilisation If this resource can be acquired by an http request, its http URL SHOULD be given. If not, but it has some URI in another URI scheme, that MAY be given here.
notes Value might point to something offline, such as a published CD, etc. For example, the doi of a published CD would be a suitable value.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dc:format
IRI du terme http://purl.org/dc/elements/1.1/format
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#format-007
Label Format (literal)
required: No -- repeatable: No
Définition The file format, physical medium, or dimensions of the resource.
Utilisation A controlled value string describing the technical format of the resource (file format or physical medium). The string SHOULD be a controlled value from the Audiovisual Core Controlled Vocabulary for Dublin Core format, although it MAY be any Media Type (MIME type) value from the IANA list of Media Types (https://www.iana.org/assignments/media-types/media-types.xhtml) or any commonly used file extension string. Human-readable information about the Controlled Vocabulary for format is at http://rs.tdwg.org/ac/doc/format/ .
notes This term can be used to describe offline digital content. In cases where the provided Service Access Point URL includes a standard file extension from which the format can be inferred, it is permissible to not provide a value for this property. See also the entry for dcterms:format in the Audiovisual Core term list document and see the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. It is best practice to use dcterms:format instead of dc:format whenever practical. Normal practice is to use the same Label if both are provided. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme dcterms:format
IRI du terme http://purl.org/dc/terms/format
Modifié 2023-09-05
IRI de la version du Terme http://dublincore.org/usage/terms/history/#formatT-001
Label Format (IRI)
required: No -- repeatable: No
Définition The file format, physical medium, or dimensions of the resource.
Utilisation An IRI denoting the technical format of the resource (file format or physical medium). The IRI SHOULD be from the Audiovisual Core Controlled Vocabulary for Dublin Core format. Human-readable information about the Controlled Vocabulary for format is at http://rs.tdwg.org/ac/doc/format/ .
notes In cases where an IRI for the format does not exist in the controlled vocabulary, a provider can omit this property and provide a media type or file extension value for dc:format. See the DCMI FAQ on DC and DCTERMS Namespaces, https://web.archive.org/web/20171126043657/https://github.com/dcmi/repository/blob/master/mediawiki_wiki/FAQ/DC_and_DCTERMS_Namespaces.md, for discussion of the rationale for terms in two namespaces. Labels have no effect on information discovery and are only suggestions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:furtherInformationURL
IRI du terme http://rs.tdwg.org/ac/terms/furtherInformationURL
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/furtherInformationURL-2020-01-27
Label Further Information URL
required: No -- repeatable: No
Définition The URL of a Web site that provides additional information about the version of the media resource that is provided by the Service Access Point.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:hashFunction
IRI du terme http://rs.tdwg.org/ac/terms/hashFunction
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/hashFunction-2020-01-27
Label Hash Function
required: No -- repeatable: No
Définition The cryptographic hash function used to compute the value given in the Hash Value.
notes Recommended values include MD5, SHA-1, SHA-224,SHA-256, SHA-384, SHA-512, SHA-512/224 and SHA-512/256
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:hashValue
IRI du terme http://rs.tdwg.org/ac/terms/hashValue
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/hashValue-2020-01-27
Label Hash
required: No -- repeatable: No
Définition The value computed by a hash function applied to the media that will be delivered at the access point.
notes Best practice is to also specify the hash function by supplying a value of the Hash Function term, using one of the standard literals from the Notes there.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:licensingException
IRI du terme http://rs.tdwg.org/ac/terms/licensingException
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/licensingException-2020-01-27
Label Licensing Exception Statement
required: No -- repeatable: No
Définition The licensing statement for this variant of the media resource if different from that given in the License Statement property of the resource.
notes Required only if this version has different licensing than that of the media resource. For example, the highest resolution version may be more restricted than lower resolution versions.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme exif:PixelXDimension
IRI du terme http://ns.adobe.com/exif/1.0/PixelXDimension
Modifié 2023-09-05
Label Image Width
required: No -- repeatable: No
Définition Information specific to compressed data. When a compressed file is recorded, the valid width of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag shall not exist in an uncompressed file.
Utilisation The width in pixels of the media specified by the access point. Contrary to the definition, in Audiovisual Core, this term MAY be used with uncompressed files.
notes Audiovisual Core uses this term for any image type, including those to which EXIF does not apply and those that are not a compressed file type like JPEG.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme exif:PixelYDimension
IRI du terme http://ns.adobe.com/exif/1.0/PixelYDimension
Modifié 2023-09-05
Label Image Height
required: No -- repeatable: No
Définition Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag shall not exist in an uncompressed file.
Utilisation The height in pixels of the media specified by the access point. Contrary to the definition, in Audiovisual Core, this term MAY be used with uncompressed files.
notes Audiovisual Core uses this term for any image type, including those to which EXIF does not apply and those that are not a compressed file type like JPEG.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:ServiceAccessPoint
IRI du terme http://rs.tdwg.org/ac/terms/ServiceAccessPoint
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/ServiceAccessPoint-2020-01-27
Label Service Access Point Class
required: No -- repeatable:
Définition A specific digital representation of a media resource.
Utilisation This term serves as a type for values of the ac:hasServiceAccessPoint property.
notes For example, a Service Access Point may have a specific resolution, quality, or format.
Type Classe
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_21
Nom du Terme ac:serviceExpectation
IRI du terme http://rs.tdwg.org/ac/terms/serviceExpectation
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/serviceExpectation-2023-09-05
Label Service Expectation
required: No -- repeatable: No
Définition A term that describes what service expectations users may have of the ac:accessURI.
notes Recommended terms include online (denotes that the URL is expected to deliver the resource), authenticate (denotes that the URL delivers a login or other authentication interface requiring completion before delivery of the resource) published(non digital) (denotes that the URL is the identifier of a non-digital published work, for example a doi.) Communities should develop their own controlled vocabularies for Service Expectations.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:variant
IRI du terme http://rs.tdwg.org/ac/terms/variant
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/variant-2023-09-05
Label Variant (IRI)
required: No -- repeatable: Yes
Définition The category describing this Service Access Point variant, denoted by an IRI.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core variant. Human-readable information about the Controlled Vocabulary for variant is at http://rs.tdwg.org/ac/doc/variant/ . In text-based systems such as tables, IRI values MUST be in unabbreviated form.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:variantDescription
IRI du terme http://rs.tdwg.org/ac/terms/variantDescription
Modifié 2020-01-27
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/variantDescription-2020-01-27
Label Variant Description
required: No -- repeatable: No
Définition Text that describes this Service Access Point variant
notes Most variants (thumb, low-res, high-res) are self-explanatory and it is best practice to leave this property empty if no special description is needed. It is provided for cases that require additional information (e.g., video shortened instead of simply quality reduced).
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19
Nom du Terme ac:variantLiteral
IRI du terme http://rs.tdwg.org/ac/terms/variantLiteral
Modifié 2023-09-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/variantLiteral-2023-09-05
Label Variant (literal)
required: No -- repeatable: Yes
Définition The category describing this Service Access Point variant, denoted by a controlled value string.
Utilisation Values SHOULD be selected from the Controlled Vocabulary for Audiovisual Core variant. Human-readable information about the Controlled Vocabulary for variant is at http://rs.tdwg.org/ac/doc/variant/ . It is best practice to use ac:variant instead of ac:variantLiteral whenever practical.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2019-12-01_19

7.11 Region of Interest Vocabulary

Regions of Interest (ROI) designate specific parts of media items. Features within these regions can be taxonomically identified or linked to occurrence records. ROI metadata may also be used to generate annotations of the media item or to facilitate display or highlighting of specific parts.

Currently spatial ROIs are limited to two dimensions and can only be defined by rectangles or arcs (including circles). The terms in this group are not repeatable within a single ROI instance, although a media item may be linked to more than one ROI by the ac:hasROI property.

For examples showing how to use these terms, see the ROI Recipes page.

Nom du Terme ac:endTime
IRI du terme http://rs.tdwg.org/ac/terms/endTime
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/endTime-2021-10-05
Label End Time in Seconds
required: No -- repeatable: No
Définition The end of a temporal region, specified as an absolute offset relative to the beginning of the media item (this corresponds to Normal Play Time RFC 2326), specified as seconds, with an optional fractional part to indicate milliseconds or finer.
Utilisation This term MUST only be applied to a region of interest.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:endTimestamp
IRI du terme http://rs.tdwg.org/ac/terms/endTimestamp
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/endTimestamp-2021-10-05
Label End Timestamp
required: No -- repeatable: No
Définition The end of a temporal region, specified as real-world clock time ISO 8601 timestamps, using UTC timezone, with an optional fractional part to indicate milliseconds or finer. There is no limit on the number of decimal places for the decimal fraction.
Utilisation This term MAY be applied to a region of interest or an entire media item.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:hasROI
IRI du terme http://rs.tdwg.org/ac/terms/hasROI
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/hasROI-2021-10-05
Label Has Region of Interest
required: No -- repeatable: Yes
Définition A region of interest located within the subject media item.
Utilisation ac:hasROI is the inverse property of ac:isROIOf.
notes Used to link a subject media item to an object region of interest.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:heightFrac
IRI du terme http://rs.tdwg.org/ac/terms/heightFrac
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/heightFrac-2021-10-05
Label Fractional Height
required: No -- repeatable: No
Définition The height of the bounding rectangle, expressed as a decimal fraction of the height of the media item.
Utilisation The sum of a valid value plus ac:yFrac MUST be greater than zero and less than or equal to one. The precision of this value SHOULD be great enough that when ac:heightFrac and ac:yFrac are used with the exif:PixelYDimension of the Best Quality variant of the Service Access point to calculate the lower right corner of the rectangle, rounding to the nearest integer results in the same vertical pixel originally used to define the point. This term MUST NOT be used with ac:radius to define a region of interest.
notes Zero-sized bounding rectangles are not allowed. To designate a point, use the radius option with a zero value.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:isROIOf
IRI du terme http://rs.tdwg.org/ac/terms/isROIOf
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/isROIOf-2021-10-05
Label Is Region of Interest of
required: No -- repeatable: No
Définition The media item within which a region of interest is located.
Utilisation ac:isROIOf is the inverse property of ac:hasROI.
notes Used to link a subject region of interest to an object media item.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:mediaDuration
IRI du terme http://rs.tdwg.org/ac/terms/mediaDuration
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/mediaDuration-2021-10-05
Label Media Duration
required: No -- repeatable: No
Définition The playback duration of an audio or video file in seconds.
notes This might be different from the time in seconds calculated as the difference of ac:endTimestamp and ac:startTimestamp if ac:mediaSpeed is not equal to 1.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:mediaSpeed
IRI du terme http://rs.tdwg.org/ac/terms/mediaSpeed
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/mediaSpeed-2021-10-05
Label Media Speed
required: No -- repeatable: No
Définition The decimal fraction representing the natural speed over the encoded speed.
Utilisation If a value for ac:mediaSpeed is not provided, applications SHOULD assume that 1.0 is the value.
notes For example, in a time-lapse recording where 60 seconds of natural time is represented in 1 second of media this would be 60. In a time-expanded recording where 1 second of recording is represented in 5 seconds of media, this would be 0.2.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:radius
IRI du terme http://rs.tdwg.org/ac/terms/radius
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/radius-2021-10-05
Label Radius
required: No -- repeatable: No
Définition The radius of a bounding circle or arc, expressed as a fraction of the width of the media item.
Utilisation A valid value MUST be greater than or equal to zero. A valid value MAY cause the designated circle to extend beyond the bounds of the media item. In that case, the arc within the media item plus the bounds of the media item specify the region of interest. This term MUST NOT be used with ac:widthFrac or ac:heightFrac to define a region of interest.
notes This term may be used with ac:xFrac and ac:yFrac to define a point. In that case, the implication is that the point falls on some object of interest within the media item, but nothing more can be assumed about the bounds of that object.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:RegionOfInterest
IRI du terme http://rs.tdwg.org/ac/terms/RegionOfInterest
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/RegionOfInterest-2021-10-05
Label Region of Interest Class
required: No -- repeatable:
Définition A designated region of a media item bounded in dimensions appropriate for the media type.
notes Dimensions may include spatial, temporal, or frequency bounds.
Type Classe
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:startTime
IRI du terme http://rs.tdwg.org/ac/terms/startTime
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/startTime-2021-10-05
Label Start Time in Seconds
required: No -- repeatable: No
Définition The beginning of a temporal region, specified as an absolute offset relative to the beginning of the media item (this corresponds to Normal Play Time RFC 2326), specified as seconds, with an optional fractional part to indicate milliseconds or finer.
Utilisation This term MUST only be applied to a region of interest.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:startTimestamp
IRI du terme http://rs.tdwg.org/ac/terms/startTimestamp
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/startTimestamp-2021-10-05
Label Start Timestamp
required: No -- repeatable: No
Définition The beginning of a temporal region, specified as real-world clock time ISO 8601 timestamps, using UTC timezone, with an optional fractional part to indicate milliseconds or finer. There is no limit on the number of decimal places for the decimal fraction.
Utilisation This term MAY be applied to a region of interest or an entire media item.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:widthFrac
IRI du terme http://rs.tdwg.org/ac/terms/widthFrac
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/widthFrac-2021-10-05
Label Fractional Width
required: No -- repeatable: No
Définition The width of the bounding rectangle, expressed as a decimal fraction of the width of the media item.
Utilisation The sum of a valid value plus ac:xFrac MUST be greater than zero and less than or equal to one. The precision of this value SHOULD be great enough that when ac:widthFrac and ac:xFrac are used with the exif:PixelXDimension of the Best Quality variant of the Service Access point to calculate the lower right corner of the rectangle, rounding to the nearest integer results in the same horizontal pixel originally used to define the point. This term MUST NOT be used with ac:radius to define a region of interest.
notes Zero-sized bounding rectangles are not allowed. To designate a point, use the radius option with a zero value.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:xFrac
IRI du terme http://rs.tdwg.org/ac/terms/xFrac
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/xFrac-2021-10-05
Label Fractional X
required: No -- repeatable: No
Définition The horizontal position of a reference point, measured from the left side of the media item and expressed as a decimal fraction of the width of the media item.
Utilisation A valid value MUST be greater than or equal to zero and less than or equal to one. The precision of this value SHOULD be great enough that when the ac:xFrac value is multiplied by the exif:PixelXDimension of the Best Quality variant of the Service Access point, rounding to the nearest integer results in the same horizontal pixel location originally used to define the point.
notes This point can serve as the horizontal position of the upper left corner of a bounding rectangle, or as the center of a circle.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35
Nom du Terme ac:yFrac
IRI du terme http://rs.tdwg.org/ac/terms/yFrac
Modifié 2021-10-05
IRI de la version du Terme http://rs.tdwg.org/ac/terms/version/yFrac-2021-10-05
Label Fractional Y
required: No -- repeatable: No
Définition The vertical position of a reference point, measured from the top of the media item and expressed as a decimal fraction of the height of the media item.
Utilisation A valid value MUST be greater than or equal to zero and less than or equal to one. The precision of this value SHOULD be great enough that when the ac:yFrac value is multiplied by the exif:PixelYDimension of the Best Quality variant of the Service Access point, rounding to the nearest integer results in the same vertical pixel originally used to define the point.
notes This point can serve as the vertical position of the upper left corner of a bounding rectangle, or as the center of a circle.
Type Propriété
Décision du Comité Exécutif http://rs.tdwg.org/decisions/decision-2021-10-05_35