The PBCore (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 is built on the foundation of the Dublin Core (ISO 15836), an international standard for resource discovery (http://dublincore.org), and has been reviewed by the Dublin Core Metadata Initiative Usage Board.
Intrinsic to digital technology is the ability for each piece of content to carry with it some data describing that content in a useful way. This descriptive data is called metadata. To address the need to manage metadata within public broadcasting’s diverse community, version 1.1 of PBCore (the Public Broadcasting Metadata Dictionary) has been developed by a cross-organizational team of public radio and television producers and managers, archivists and information scientists.
PBCore is designed to provide—for television, radio and Web activities—a standard way of describing and using this data, allowing content to be more easily retrieved and shared among colleagues, software systems, institutions, community and production partners, private citizens, and educators. It can also be used as a guide for the onset of an archival or asset management process at an individual station or institution. Such a standard is pivotal to applying the real power of digital technology to meet the mission of public broadcasting.
We can now control every aspect of production and distribution to a degree never possible with analog technology. A common metadata protocol will make it easier to use content in new ways, on new platforms, by new constituents. PBCore will facilitate new production collaborations and the ability to parse traditional programs into short segments for Web distribution or as niche content for specific community, service and institutional needs. For these and other applications where granular manipulation and interoperability of content are required, PBCore will be essential.
The need for a shared descriptive language for public broadcasters was underscored in the results of the test implementations, as well as the March 2004 Request for Comments. Test participants affirmed the belief that their organizations and public broadcasting need PBCore to be widely available and in use by a majority of broadcasters. Ninety-six percent of the RFC respondents agreed "public broadcasting needs a core metadata dictionary," and that PBCore meets this need.
In addition, 44 percent of participants plan to implement a metadata project within a year, and 74 percent within two years. Respondents indicated the use of PBCore would provide public broadcasting with a necessary tool for increasing station and network efficiencies and inter-station resource sharing. And 80 percent agreed the use of PBCore could afford new service opportunities for their organization or those with whom they work.
Available free of charge to public broadcasting stations, distributors, vendors, and partners, version 1.0 of PBCore was launched in the first quarter of 2005 and version 1.1 was published in the first quarter of 2007. Please reference the links to Who May Use PBCore and PBCore Licensing for additional information about usage and implementation.
Funded by the Corporation for Public Broadcasting and administered by WGBH/Boston, a well-formed metadata dictionary directly addresses public broadcasting’s mission by making its award-winning content more easily accessible to teachers, scholars, lifelong learners, engaged citizens, and community partners.
Based on Dublin Core: The PBCore is built on the foundation of the Dublin Core (ISO 15836), an international standard for resource discovery (http://dublincore.org), and has been reviewed by the Dublin Core Metadata Initiative Usage Board.
Building a Community of Practice... A metadata dictionary and the situations in which it is applied are not static. Much work has been accomplished in order to define a core set of metadata descriptors for use by Public Broadcasters and their associated communities and partners. However, we are part of an evolutionary process that is building a "Community of Practice" for the uses and applications of the PBCore.
At the present time, the National Center for Accessible Media (NCAM), the WGBH Educational Foundation, is chartered as the official PBCore Authority and Maintenance Organization. This Authority will maintain the PBCore, in addition to providing user support, training, and PBCore metadata tools (see User Guide).
Contacts: As part of the PBCore Authority, a Project Director, is coordinating efforts to promote PBCore and assist in its application for your many data creation, manipulation and transport needs. At all times, we welcome feedback, questions, comments, concerns, requests, needs, and quandries about the PBCore. For specific contact information, link to our page Contacts.