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CAN/CSA-ISO/IEC 21000-20:18

Current
Current

The latest, up-to-date edition.

Information technology — Multimedia framework (MPEG-21) — Part 20: Contract Expression Language (Adopted ISO/IEC 21000-20:2016, second edition, 2016-12-15)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2018

Foreword
Introduction
1 Scope
2 Normative References
3 Terms, definitions and abbreviated terms
4 Conventions
5 Relationship to other ISO/IEC 21000
6 Overview
7 Contract Structured Representation
Annex A (normative) - Schemas
Annex B (informative) - Examples of CEL Contracts
Bibliography

Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). Scope This document 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.

Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). Scope This document 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.

DocumentType
Standard
ISBN
978-1-4883-1002-7
Pages
100
PublisherName
Canadian Standards Association
Status
Current

Standards Relationship
ISO/IEC 21000-20:2016 Identical

ISO 639-1:2002 Codes for the representation of names of languages — Part 1: Alpha-2 code
ISO/IEC 21000-3:2003 Information technology — Multimedia framework (MPEG-21) — Part 3: Digital Item Identification
ISO/IEC 21000-21:2017 Information technology — Multimedia framework (MPEG-21) — Part 21: Media contract ontology
ISO 4217:2015 Codes for the representation of currencies
ISO 3166-1:2013 Codes for the representation of names of countries and their subdivisions Part 1: Country codes
ISO 15836:2009 Information and documentation The Dublin Core metadata element set
ISO/IEC 21000-5:2004 Information technology — Multimedia framework (MPEG-21) — Part 5: Rights Expression Language
ISO/IEC 15938-5:2003 Information technology — Multimedia content description interface — Part 5: Multimedia description schemes

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