Information technology - Multimedia framework (MPEG-21) - Part 5: Rights Expression Language
|Publication Date:||1 March 2004|
|ICS Code (Coding of audio, video, multimedia and hypermedia information):||35.040.40|
This part of ISO/IEC 21000 specifies the syntax and semantics of a Rights Expression Language. However, this part of ISO/IEC 21000 does define an authorization model to specify whether the semantics of a set of Rights Expressions permit a given Principal to perform a given Right upon a given optional Resource during a given time interval based on a given authorization context and a given trust root. Clause 1 gives the scope of this part of ISO/IEC 21000. Clause 2 gives the normative references. Clause 3 gives pertinent terms, definitions, symbols, and abbreviated terms. Clause 4 gives the namespaces and conventions. Clause 5 specifies the authorization model. Clause 6 defines architectural concepts. Clause 7 specifies the syntax and semantics integral to the architecture. Clause 8 specifies syntax and semantics peripheral to the architecture but still useful in many domains beyond multimedia. Clause 9 specifies syntax and semantics specific to multimedia. Annex A uses W3C XML Schema to normatively specify the syntax of the types and elements defined throughout this part of ISO/IEC 21000. Annex B normatively defines Qualified Names for identifying countries, regions, and currencies. Annex C gives an informative simplified equality algorithm. Annex D gives some example Rights Expressions. Annex E describes the design philosophy for extensions and profiles of this part of ISO/IEC 21000. Annex F demonstrates how to introduce new rights as an extension to this part of ISO/IEC 21000. Annex G gives an example profile of this part of ISO/IEC 21000. Annex H describes the relationship between ISO/IEC 21000-6 and this part of ISO/IEC 21000. Annex I describes the relationship between ISO/IEC 21000-2 and this part of ISO/IEC 21000. Annex J describes an example revocation mechanism and gives a walk-through of revocation.