Standard

ETSI TS 102 822-3-4

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Omfang

The present document is one in a series of Technical Specification documents produced by the TV-Anytime Forum. These documents establish the fundamental specifications for the services, systems and devices that will conform to the TV-Anytime standard, to a level of detail that is implementable for compliant products and services. TS 102 822-1 [1] and TS 102 822-2 [2] set the context and system architecture in which the standards for Metadata, Content referencing, Bi-directional metadata and Metadata protection are to be implemented in the TV-Anytime environment. TS 102 822-1 [1] provides benchmark business models against which the TV-Anytime system architecture is evaluated to ensure that the specifications enable key business applications. TS 102 822-2 [2] presents the TV-Anytime System Architecture and the relationship between Phase 1 and Phase 2 technologies. These first two documents are largely informative, while the remainder of the series is normative. The Phase 2 TV-Anytime Metadata schema is a backwards-compatible extension of the Phase 1 schema. It extends Phase 1 datatypes for content description and user description and makes use of imported datatypes from MPEG-21 to enable new areas of functionality. It also extends the TV-Anytime root document type, TVAMainType, to enable publication of metadata described using the new datatypes. The present document has been developed during the second phase of TV-Anytime and deals with the metadata necessary to enable interstitial replacement, within a PDR device. The set of metadata described in the present document was selected in order to satisfy the usage scenarios listed in TS 102 822-1 [1]. The formal definitions of metadata schemas should be read in conjunction with the system specification (TS 102 822-2 [2]) defining how they could be used in an end-to-end system. TV-Anytime only defines the format for metadata that may be exchanged between various entities such as between content providers and consumers, among consumers, or between a third-party metadata provider and consumers.  XML is the "representation format" used to define schemas in TV-Anytime specifications. Although XML Schema is used to define how metadata is represented in XML, it can also be used to describe equivalent, non-XML representations of the same metadata.

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  • Varetype: IS
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