Resumen
ISO/IEC 21000-2:2005 specifies:
- Model: The Digital Item Declaration Model describes a set of abstract terms and concepts to form a useful model for defining Digital Items.
- Representation: The Digital Item Declaration Language (DIDL) is based upon the terms and concepts defined in the above model. It contains the normative description of the syntax and semantics of each of the DIDL elements, as represented in XML.
- Schema: Informative XML schemas illustrating complete grammars for representation of the DID in XML conforming to the normative representation.
- Detailed Examples: Illustrative (non-normative) examples of DIDL documents are provided to aid in understanding the use of the specification and its potential applications.
The ISO/IEC 21000 (MPEG-21) series of International Standards defines an open framework for multimedia delivery and consumption, with both the content creator and content consumer as focal points. The vision for MPEG-21 is to define a multimedia framework to enable transparent and augmented use of multimedia resources across a wide range of networks and devices used by different communities.
This second part of MPEG-21 (ISO/IEC 21000-2:2005) specifies a uniform and flexible abstraction and interoperable representation for declaring the structure and makeup of Digital Items. A Digital Item Declaration (DID) involves specifying the resources, metadata, and their interrelationships for a Digital Item. A DID is done using the Digital Item Declaration Language (DIDL).
Informaciones generales
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Estado: PublicadoFecha de publicación: 2005-10Etapa: Norma Internacional en proceso de revisión sistemática [90.20]
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Edición: 2Número de páginas: 88
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Comité Técnico :ISO/IEC JTC 1/SC 29ICS :35.040.40
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Modificaciones
Las enmiendas se emiten cuando se decide que puede ser necesario agregar nuevo material a un documento de normalización existente. También pueden incluir correcciones editoriales o técnicas que deban aplicarse al documento existente.
Ciclo de vida
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Anteriormente
RetiradaISO/IEC 21000-2:2003
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Ahora
PublicadoISO/IEC 21000-2:2005
Las normas se revisan cada 5 años
Etapa: 90.20 (En proceso de revisión)-
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Preliminar
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10
Propuesta
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20
Preparación
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30
Comité
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40
Consulta
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50
Aprobación
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60
Publicación
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90
Revisión
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95
Retirada
Modificaciones
Aportan contenido adicional; disponible para su compra; no incluidas en el texto de la norma existente.PublicadoISO/IEC 21000-2:2005/Amd 1:2012
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