Controlled Vocabulary for Audiovisual Core Content Description: List of Terms

Title

Controlled Vocabulary for Audiovisual Core Content Description: List of Terms

Namespace IRI

http://rs.tdwg.org/accd/values/

Preferred namespace abbreviation

accd:

版本發行日期

2026-01-23

建立日期

生物多樣性訊息標準的一部分

http://www.tdwg.org/standards/638

此版本

http://rs.tdwg.org/ac/doc/cd/2026-01-23

最新版本

http://rs.tdwg.org/ac/doc/cd/

Abstract

Audiovisual Core uses the terms Iptc4xmpExt:CVterm and ac:CVtermLiteral to provide information about the content of all or part of a media item. This controlled vocabulary provides values for those terms.

貢獻者

Steven J Baskauf (Vanderbilt University Heard Libraries), Edward Baker (Natural History Museum, London), Dan Stowell (Queen Mary University of London), Niels Klazenga (Royal Botanic Gardens Victoria)

建立者

TDWG Audiovisual Core Maintenance Group

書目引用

TDWG Audiovisual Core Maintenance Group. 2026. Controlled Vocabulary for Audiovisual Core Content Description: List of Terms. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/ac/doc/cd/2026-01-23

1 Introduction (informative)

This document includes terms intended to be used as controlled values for Audiovisual Core terms Iptc4xmpExt:CVterm and ac:CVtermLiteral.

1.1 本文件內容的現況

Section 1 is informative (non-normative).

第 2 節為規範性。

Section 3 is informative (non-normative).

在第 4 節中，Term IRI、Definition和Controlled value的值為規範性。 Usage的值 (如果它存在於特定術語中) 為規範性。 Term Name的值為非規範性，不過可以預期命名空間縮寫是術語命名空間的常用前綴。 Label and the values of all other properties are non-normative.

1.2 RFC 2119 關鍵字

關鍵字「必須」、「不得」、「要求」、「應」、「不應」、「應當」、「不應當」、「建議」、「可」、「可選」的定義，請參照BCP 14 [RFC 2119] 及 [RFC 8174] 所定義之含義，惟詞彙須以全大寫形式呈現時方適用。

2 使用條款

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 Iptc4xmpExt:CVterm. Controlled value strings SHOULD be used as values of the property ac:CVtermLiteral.

2.2 Relationship between values of ac:CVtermLiteral and Iptc4xmpExt:CVterm

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 Iptc4xmpExt:CVterm given a controlled value string for ac:CVtermLiteral even if that IRI is not explicitly stated. The practical implication is that data aggregators MAY materialize values for the preferred Iptc4xmpExt:CVterm property in cases where providers only provide values for ac:CVtermLiteral.

3 術語索引

Barcode | Color Bar | Content Description Controlled Vocabulary | Context | Label | Organism Part | Packet | Scale Bar | Spoken Description

4 詞彙