Controlled Vocabulary for Audubon Core variant: List of Terms

Title: Controlled Vocabulary for Audubon Core variant: List of Terms

Namespace URI: http://rs.tdwg.org/acvariant/values/

Preferred namespace abbreviation: acvariant:

Date version issued: 2020-10-13

Date created: 2020-10-13

Part of TDWG Standard: http://www.tdwg.org/standards/638

This version: http://rs.tdwg.org/ac/doc/variant/2020-10-13

Latest version: http://rs.tdwg.org/ac/doc/variant/

Abstract: Audubon Core uses the terms ac:variant and ac:variantLiteral to provide information about the size, extent, and availability of the Service Access Point of a media item. This controlled vocabulary provides values for those terms.

Contributors: Steven J Baskauf (Vanderbilt University Heard Libraries), Ed Baker (Natural History Museum, London), Dan Stowell (Queen Mary University of London / Alan Turing Institute)

Creator: TDWG Audubon Core Maintenance Group

Bibliographic citation: Audubon Core Maintenance Group. 2020. Controlled Vocabulary for Audubon Core variant: List of Terms. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/ac/doc/variant/2020-10-13

1 Introduction (informative)

This document includes terms intended to be used as a controlled value for Audubon Core terms ac:variant and ac:variantLiteral.

1.1 Status of the content of this document

Section 1 is informative (non-normative).

Section 2 is normative.

Section 3 is informative (non-normative).

In Section 4, the values of the Term IRI, Definition, and Controlled value are normative. The value of Usage (if it exists for a given term) is normative. The values of Term Name are non-normative, although one can expect that the namespace abbreviation prefix is one commonly used for the term namespace. Label and the values of all other properties are non-normative.

1.2 RFC 2119 key words

The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119.

2 Use of Terms

2.1 Relationship of value types to property terms

In accordance with the Audubon Core Term List document, unabbreviated term IRIs SHOULD be used as values of the property ac:variant. Controlled value strings SHOULD be used as values of the property ac:variantLiteral.

2.2 Relationship between values of ac:variantLiteral and ac:variant

An IRI for a term in this vocabulary denotes the same concept as the concept denoted by the controlled value string for the same term. Thus a client MAY infer an IRI value for ac:variant given a controlled value string for ac:variantLiteral even if that IRI is not explicitly stated. The practical implication is that data aggregators MAY materialize values for the preferred ac:variant property in cases where providers only provide values for ac:variantLiteral.

3 Term index

Best Quality | Good Quality | Lower Quality | Medium Quality | Offline | Thumbnail | Trailer | Visual | variant concept scheme

4 Vocabulary

Term Name acvariant:v
Term IRI http://rs.tdwg.org/acvariant/values/v
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v-2020-10-13
Label variant concept scheme
Definition A SKOS Concept Scheme for controlled values for ac:variant
Type http://www.w3.org/2004/02/skos/core#ConceptScheme
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v001
Term IRI http://rs.tdwg.org/acvariant/values/v001
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v001-2020-10-13
Label Thumbnail
Definition Service Access Point provides a thumbnail image, short sound clip, or short movie clip that can be used in addition to the resource to represent the media object, typically at lower quality and higher compression than a preview object.
Notes A typical size for a tiny thumbnail image may be 50-100 pixels in the longer dimension.
Controlled value Thumbnail
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v002
Term IRI http://rs.tdwg.org/acvariant/values/v002
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v002-2020-10-13
Label Trailer
Definition Service Access Point provides video clip preview, in the form of a specifically authored "Trailer", which may provide somewhat different content than the original resource.
Controlled value Trailer
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v003
Term IRI http://rs.tdwg.org/acvariant/values/v003
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v003-2020-10-13
Label Lower Quality
Definition Service Access Point provides a lower quality version of the media resource.
Examples an image suitable for web sites
Controlled value Lower Quality
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v004
Term IRI http://rs.tdwg.org/acvariant/values/v004
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v004-2020-10-13
Label Medium Quality
Definition Service Access Point provides a medium quality version of the media resource.
Examples shortened in duration, reduced size, using lower resolution or higher compression causing moderate artifacts
Controlled value Medium Quality
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v005
Term IRI http://rs.tdwg.org/acvariant/values/v005
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v005-2020-10-13
Label Good Quality
Definition Service Access Point provides a good quality version of the media resource intended for resources displayed as primary information.
Examples an image between 800 and 1600 pixels in width or height
Controlled value Good Quality
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v006
Term IRI http://rs.tdwg.org/acvariant/values/v006
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v006-2020-10-13
Label Best Quality
Definition Service Access Point provides the highest available quality of the media resource, whatever its resolution or quality level.
Controlled value Best Quality
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v007
Term IRI http://rs.tdwg.org/acvariant/values/v007
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v007-2020-10-13
Label Offline
Definition Service Access Point provides data about an offline resource.
Controlled value Offline
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30
Term Name acvariant:v008
Term IRI http://rs.tdwg.org/acvariant/values/v008
Modified 2020-10-13
Term version IRI http://rs.tdwg.org/acvariant/values/version/v008-2020-10-13
Label Visual
Definition Service Access Point provides a visual or graphic representation of a media resource that is not an image.
Examples a sonogram, an oscillogram
Controlled value Visual
Type Concept
Executive Committee decision http://rs.tdwg.org/decisions/decision-2020-10-13_30