Controlled Vocabulary for Audiovisual Core variant: List of Terms

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

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

Preferred namespace abbreviation: acvariant:

Date version issued: 2023-02-24

Date created: 2020-10-13

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

This version: http://rs.tdwg.org/ac/doc/variant/2023-02-24

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

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

Abstract: Audiovisual 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 Audiovisual Core Maintenance Group

Bibliographic citation: Audiovisual Core Maintenance Group. 2023. Controlled Vocabulary for Audiovisual Core variant: List of Terms. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/ac/doc/variant/2023-02-24

1 Introduction (informative)

This document includes terms intended to be used as a controlled value for Audiovisual 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 Audiovisual 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