pbcore
PBCore Revision History
Having just published PBCore 2.0, we thought we’d summarize the evolution of the schema. Following is a timeline and summary of previous versions of PBCore. For new developments in 2.0, see Jack Brighton’s “Introducing PBCore 2.0″ post.
How to express collections in PBCore
The introduction in PBCore 2.0 of the root element ‘pbcoreCollection’ directly addresses the need to “wrap” or collect assets for use in an XML-based publishing system like Really Simple Syndication (RSS). Use ‘pbcoreCollection’ to wrap any number of ‘pbcoreDescriptionDocument’ asset records for sharing or to express the structure of a collection of records.
How to create abstract assets (no instantiation)
PBCore 2.0 can be used to express “abstract,” or metadata-only assets. These assets simply do not have any instantiations, and might serve to represent a high level idea such as a television for which there is no single physical or digital instantiation. The descriptive metadata within such an assets may be referenced from within other […]
How to sequence records within relationships
When PBCore is used to list related items, it can also express the nature of their interrelationships. For example, when expressing an asset within pbcoreDescriptionDocument, use the sub-element structure of pbcorePart to define segments, stories or episodes. Then utilize the element structure within ‘pbcoreRelation’ to articulate any associations between assets. <?xml version="1.0" encoding="UTF-8"?> <pbcoreDescriptionDocument xmlns="http://pbcore.org/PBCore/PBCoreNamespace.html" […]
How to embed a transcript within a description
PBCore does not limit the amount of data contained in its description-oriented fields, so it’s possible to includet whole transcripts. Transcripts and other lengthy descriptions are likely to contain characters that are problematic to include in XML, however. There are two solutions: 1) wrap or surround it within a CDATA structure: <pbcoreDescription> <![CDATA[This is how […]
WNET.org’s Digital Asset Management System
WNET.org is New York City’s premier public television station, serving the largest market in the country. The station is also one of the major producers of national programming on PBS, originating such signature series as NATURE; Live from Lincoln Center; American Masters; Religion & Ethics Newsweekly; Cyberchase; and Need to Know.
Democracy Now! Audio and Video Production
Why we use PBCore PBCore was first used in the Democracy Now! archive by our former archivist, David Rice, but we continue to use it because it fits our needs. We have limited resources and rely on interns to catalog our production material, so we need a metadata standard with which one can familiarize oneself […]
