The PBCore metadata standard (Public Broadcasting Metadata Dictionary) was created by the public broadcasting community in the United States of America for use by public broadcasters and related communities. Initial development funding for PBCore was provided by the Corporation for Public Broadcasting. The PBCore standard is built on the foundation of the Dublin Core (ISO 15836), an international standard for resource discovery, and has been reviewed, though not endorsed, by the Dublin Core Metadata Initiative Usage Board.
PBCore extends Dublin Core by adding a number of elements specific to audiovisual (AV) assets. These AV assets can be physical analog media items, or digital media objects. PBCore provides a standard for cataloging and describing media objects in three general ways:
- Intellectual Content provides descriptive metadata including Title, Subject, Description, and Genre. The Intellectual Content for the asset contains no metadata concerning the physical or digital representation of the asset.
- Intellectual Property provides metadata concerning the creator, distributor, and publisher of the AV asset, along with rights information about its use.
- Instantiation contains all technical metadata about the physical or digital representation of the AV asset. This can include format, media type, duration, file size, data rate, aspect ratio, frame rate, and many other aspects of the media object. The Instantiation metadata includes the location of the physical or digital media object, which in the case of a streaming media file can be its full URL. In PBCore there can be many Instantiations for the same AV asset, all of which share the same Intellectual Content metadata.
PBCore provides an XSD allowing validation of PBCore XML records. PBCore XML can be used to exchange detailed metadata about media assets, and optionally the media assets themselves, among systems configured for the PBCore standard.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Metadata standards — are requirements which are intended to establish a common understanding of the meaning or semantics of the data, to ensure correct and proper use and interpretation of the data by its owners and users. To achieve this common understanding, a… … Wikipedia
Dublin Core — The Dublin Core metadata terms are a set of vocabulary terms which can be used to describe resources for the purposes of discovery. The terms can be used to describe a full range of web resources: video, images, web pages etc and physical… … Wikipedia
Digital asset management — (DAM) consists of management tasks and decisions surrounding the ingestion, annotation, cataloguing, storage, retrieval and distribution of digital assets. Digital photographs, animations, videos and music exemplify the target areas of media… … Wikipedia
Дублинское ядро — (англ. Dublin Core) стандарт метаданных (формат метаданных), простой и эффективный набор для описания широчайшего диапазона сетевых ресурсов. Стандарт разделён на два уровня: простой (неквалифицированный, simple), состоящий из 15… … Википедия