This part of ISO/IEC 21000 describes a Rights Data Dictionary which comprises a set of clear, consistent,
structured, integrated and uniquely identified Terms (as defined in Clause 5.4) to support the MPEG-21 Rights
Expression Language (REL), ISO/IEC 21000-5. Annex A specifies the methodology for and structure of the RDD
Dictionary, and specifies how further Terms may be defined under the governance of a Registration Authority,
requirements for which are described in Annex C.
Taken together, these specifications and the RDD Dictionary and Database together make up the RDD System.
Use of the RDD System will facilitate the accurate exchange and processing of information between interested
parties involved in the administration of rights in, and use of, Digital Items, and in particular it is intended to support
ISO/IEC 21000-5 (REL). Clause 6 describes how this part of ISO/IEC 21000 relates to ISO/IEC 21000-5.
As well as providing definitions of Terms for use in ISO/IEC 21000-5, the RDD System is designed to support the
mapping of Terms from different namespaces. Such mapping will enable the transformation of metadata from the
terminology of one namespace (or Authority) into that of another namespace (or Authority). Mapping, to ensure
minimum ambiguity or loss of semantic integrity, will be the responsibility of the Registration Authority,
requirements for which are specified in Annex C. Provision of automated Term look-up is also a requirement.
The RDD Dictionary is a prescriptive Dictionary, in the sense that it defines a single meaning for a Term
represented by a particular RddAuthorized TermName, but it is also inclusive in that it can recognize the
prescription of other Headwords and definitions by other Authorities and incorporates them through mappings. The
RDD Dictionary also supports the circumstance that the same name may have different meanings under different
Authorities. ISO/IEC 21000-6 describes audit provisions so that additions, amendments and deletions to Terms and
their attributes can be tracked.
ISO/IEC 21000-6 recognises legal definitions as and only as Terms from other Authorities that can be mapped into
the RDD Dictionary. Therefore Terms that are directly authorized by the RDD Registration Authority neither define
nor prescribe intellectual property rights or other legal entities.
ISO/IEC 21000-6:2004 history
2007ISO/IEC 21000-6:2004/Cor 2:2007 Information technology — Multimedia framework (MPEG-21) — Part 6: Rights Data Dictionary — Technical Corrigendum 2
2006ISO/IEC 21000-6:2004/Amd 1:2006 Amendment 1 - Information technology -- Multimedia framework (MPEG-21) -- Part 6: Rights Data Dictionary - Digital Item Identifier relationship types
2005ISO/IEC 21000-6:2004/Cor 1:2005 Information technology - Multimedia framework (MPEG-21) - Part 6: Rights Data Dictionary - Amendment 1: Digital Item Identifier relationship types
2004ISO/IEC 21000-6:2004 Information technology - Multimedia framework (MPEG-21) - Part 6: Rights Data Dictionary