ISO/IEC 21000-20:2016

Information technology — Multimedia framework (MPEG-21) — Part 20: Contract Expression Language

Publication date:   Dec 15, 2016

General information

90.60   Close of review   Mar 14, 2022

ISO/IEC

ISO/IEC JTC 1/SC 29 Coding of audio, picture, multimedia and hypermedia information

International Standard

35.040.40   Coding of audio, video, multimedia and hypermedia information

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Scope

ISO/IEC 21000-20:2016 specifies a language for representing contracts in the Multimedia Framework formed for the transaction of MPEG-21 Digital Items or services related to the MPEG-21 Framework.
Contract Expression Language (CEL) aims at digitally representing the agreements made in environments using ISO/IEC 21000. These agreements are contracts for transactions of content packed as Digital Items, as well as services provided around this content.
The range of contracts under scope are as follows:
- contracts about transactions on rights for the exploitation of content as MPEG-21 Digital Items;
- contracts about the provision of MPEG-21-based services, i.e. delivery, identification, encryption, search and others.
The aspects represented by CEL contracts include the following:
- the textual clauses, in natural language as they are in the narrative contract, duly structured;
- the operative clauses, as computer language expressions.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO/IEC 21000-20:2013

NOW

PUBLISHED
ISO/IEC 21000-20:2016
90.60 Close of review
Mar 14, 2022