| Announcements and
News
about the
PBCore
Public Broadcasting
Metadata Dictionary |
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The Corporation for Public Broadcasting Launches
the PBCore 2.0 Development Project
(March 2010)
(Washington, DC) - - The Corporation for Public Broadcasting today announced the launch of the PBCore 2.0 Development Project.
The PBCore 2.0 Development Project will expand the existing PBCore metadata standard to increase the ability, on one hand, of content producers and distributors using digital media to classify and describe public media content (audio and video) and, on the other, of audiences to find public media content on a variety of digital media and mobile platforms.
The PBCore 2.0 Development Project will also work to enhance the PBCore standard to ensure that it will be able to satisfy the demands of multiplatform digital content as well as an evolving World Wide Web. Since PBCore's development in 2005, it has become not only one of the most widely-used metadata standards in the world, but also the basis of other metadata standards. At the same time, in the last five years, the number of digital media applications that would benefit from PBCore has grown significantly. An updated PBCore will benefit not only public broadcasters, but all users of metadata standards based on PBCore.
PBCore 2.0 will be managed by WGBH, AudioVisual Preservation Solutions and Digital Dawn. For more information on the PBCore 2.0 Development Project, watch this space!
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PBCore Presents at the American Archives
Pilot Project Conference
(September 2009)
As PBCore finds itself used in a multitude of settings, databases, media information systems, and organizations, it is appropriate to "Re-Reconnoiter" with the Public Broadcasting Metadata Dictionary, particularly with regard to the American Archive Pilot Project (AAPP). At the September 2009 conference, hosted by Oregon Public Broadcasting in Portland, Oregon, PBCore was re-visited, highlighting its origins, its purpose, how it can be applied, and what could be considered better practices in the use and abuse of metadata descriptions.
The goal of the American Archive Project is stated ...
... to serve as a digital repository of content produced by public television and radio, and is designed to be used by the general public, educators, broadcasters and historians. It is both preservation and a distribution system, which shares the public service orientation and sensibility of the public broadcasting system.
The AAPP is a pilot project to develop a subset of historically relevant digitized television and radio content. The goal of the project is to help CPB identify the challenges and issues encountered in the digitization of public broadcasting content as it relates to the implementation of the full Archive, which could ultimately involve scores of thousands of hours of content – both programs and back up material – reaching back as many as seven decades.
Certainly metadata plays a pivotal role. In a Re-Reconnoiter of PBCore, Paul Burrows (Media Solutions, University of Utah) recalled the genesis of the metadata dictionary and joins with the participants in exploring how its well-researched and well-defined metadata elements can be applied in describing media items and in sharing those descriptions between different information systems.
 PDF Version of the PBCore Presentation at AAPP
 QuickTime Movie Version of the PBCore Presentation at AAPP (movie advances by using the Play button to move to each new slide)
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WNET/Thirteen Releases its Implementation
of a PBCore Cataloging Tool
(February 2009)
Written by DaveRice on Friday, February 27, 2009
WNET/Thirteen hereby releases the software of its PBCore Repository Project under the GPLv3 license (http://www.gnu.org/licenses/gpl-3.0.txt). The PBCore Record Repository is an online database tool built on Ruby on Rails, Sphinx search, and MYSQL that was created at WNET/Thirteen to facilitate the import, export, search, creation and modification of PBCore records according to the PBCore 1.2.1 standard (http://www.pbcore.org/PBCore/PBCoreXMLSchema.html).
For testing and evaluation a public installed version of the application can be found at http://pbcore.vermicel.li
(For administrative testing log in as username=admin and password=secret)
This work employs PBCore. 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 others. 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. Copyright: 2005, Corporation for Public Broadcasting.
Further technical documentation can be found at this website...
http://git.mlcastle.net/?p=pbcore.git;a=blob;f=doc/README_FOR_APP;hb=HEAD
A current snapshot of the source code can be found at this website...
http://git.mlcastle.net/?p=pbcore.git;a=snapshot;h=HEAD;sf=tgz
This tool is under development and feedback is appreciated.
David Rice Digital Media Archivist WNET/Thirteen
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PBCore v1.2 is on the Horizon!!!
December 2008
A portion of the original PBCore v1.1 metadata dictionary is changing into what will be known as PBCore v1.2. The justification for changes to the PBCore schema is to better accommodate the possibility that a media asset may have multiple instantiations, all the same except for technical attributes. Thus, metadata elements that describe a media asset as a whole still exist in v1.2; however, the different attributes associated with multiple instantiations are now "containerized" under a new container called the pbcoreEssenceTrack.
That's quite a mouthful. To preview the differences between v1.1 and v1.2, visit our web page on the PBCore XML Schema (XSD). Comparative diagrams and further narrative discussion is provided there in order to highlight what will be the next edition of PBCore. An updated version of the XSD is immediately available for download from the same web page. However, the documentation and User Guide for PBCore has not yet been updated throughout the overall PBCore website. Stay tuned for that adjustment.
 Preview PBCore v1.2 At-a-Glance. Download v1.2 of the PBCore XSD.
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PBCore Resources Website now Available to help you use PBCore
December 2008
This is THE PLACE for users of the PBCore Metadata Dictionary and Schema!
The PBCore Resources Website is a place to collaborate and share experiences related to PBCore. Many of us are jumping into PBCore for cataloging and sharing information about A/V objects. We are finding it useful, but there are nuances to using PBCore properly, and in some situations, PBCore has not yet been able to fulfill all cataloging needs. Official change management is currently in the hands of the PBCore Resource Group. But everyone using PBCore in the wild either has implementation efforts to share or specific questions to ask about best practices in employing PBCore.
Jack Brighton is the Assistant Director of Broadcasting and Director of Internet Development at WILL Public Media, University of Illinois at Urbana-Champaign. He has spearheaded the effort to provide you with a place to share PBCore experiences, ask questions, and provide observations, all in a threaded discussion format. As well, announcements and links to related metadata activities and presentations are provided.
The PBCore Resources Website (http://www.pbcoreresources.org) can be considered a companion to the primary PBCore site (http://www.pbcore.org). Please visit the new user resources site, create a log-in, and begin sharing and learning about all things PBCore.
Visit the PBCore Resources Website
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PBCore Featured at Integrated Media Association Conference
February 2008
Jack Brighton is the Assistant Director of Broadcasting and Director of Internet Development at WILL Public Media, University of Illinois at Urbana-Champaign, where he manages web site technology and content. At the February 19-23, 2008, Conference of the Integrated Media Association, Mr. Brighton hosted a presentation on PBCore as the metadata standard for public broadcasting stations. In his session he asked such questions as: What does this mean for you? What is the purpose of a metadata standard anyway, and why PBCore? The essentials of the PBCore standard and its XML schema were covered. References were made to a variety of resources and tools, including the free File Maker Pro-based PBCore cataloging utility. Brighton also demonstrated how to use a website Content Management System to create an online video library, complete with standards-compliant web pages, RSS/Atom feeds, and PBCore XML records for each media object.
IMA Conference Presentation on PBCore (February 2008): "The Internet as Public Media Library"
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PBCore Featured in CURRENT
December 17, 2007
CURRENT is the publication about the public television and radio industry in the USA. In the December 17, 2007 issue, Marcia Brooks (project manager for the PBCore project during the last several years) writes about the PBCore Metadata Dictionary. The article updates us on the past, current, and future events surrounding PBCore and its usage across many different metadata communities.
CURRENT Article December 17, 2007: "Get Going in Metadata Today with this Amazing Free Kit!"
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Cataloging Tool's Runtime Versions Available for Download
January 2008
The PBCore Cataloging Tool based on FileMaker Pro databases was made available for download earlier in 2007. The tool is a fully featured database file that complies with the PBCore metadata dictionary. It provides a PBCore compliant method for describing media assets and has direct links to the PBCore User Guide for assistance. The Tool also offers export and import of XML files of metadata that are based on the PBCore XSD (XML Schema Definition).
As a database file, the Tool required the user to purchase and install the actual FileMaker application in order to launch and run the Tool. We call this iteration of the Tool the Standard Version. The PBCore project has just made availabe the Tool's Runtime Versions. The Runtime Versions do not require the FileMaker application. They are stand-alone, self-launching files and are available in two editions, one for the Macintosh and one for the Windows operating systems.
Duplicating a metadata record is now possible! One of the frequently asked updates to the Cataloging Tool is the ability to duplicate an individual record and then modify the duplicate to reflect only minor changes in the metadata descriptions. This is helpful when the intellectual content remains the same, but the formats (instantiation) or the intellectual property rights are the only adjustments in the data record.
The links to download these files are to be found at ...
http://www.pbcore.org/PBCore/PBCore_Tools.html#tools
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QuickStart Guide for PBCore Cataloging Tool
Updated as of January 2007
With the release of the PBCore Cataloging Tool, a QuickStart Guide was posted to the PBCore website. This Guide has been greatly expanded and in essence has become your User Guide to the PBCore Cataloging Tool.
The updated guide provides step-by-step instructions on using the Cataloging Tool, how to enter metadata, how to create User Accounts, making reports and print-outs, how to modify picklists, and the steps to both import and export XML metadata that complies with the PBCore XSD (XML Schema Definition).
Don't just start poking around the buttons and layouts of the Cataloging Tool. Reference the QuickStart Guide for easy reading and rapid instructions. A Table of Contents is included in the Guide.
This QuickStart Guide provides instructions for both the Standard version of the PBCore Cataloging Tool (requires FileMaker Pro) as well as the Runtime versions (stand-alone, no application software required).
Duplicating a metadata record is now possible! One of the frequently asked updates to the Cataloging Tool is the ability to duplicate an individual record and then modify the duplicate to reflect only minor changes in the metadata descriptions. This is helpful when the intellectual content remains the same, but the formats (instantiation) or the intellectual property rights are the only adjustments in the data record.
http://www.pbcore.org/PBCore/PBCore_Tool_docs/PBCore_Tool_QuickStart.html
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Cataloging Tool using PBCore
(FileMaker for Mac & Windows) Ready for Download!!
Need to catalog media items using the PBCore Metadata Dictionary?
From our PBCore User Guide (http://www.pbcore.org/PBCore/PBCore_Tools.html) you may now download the FileMaker Cataloging Tool along with two read me files (for end-users, and for admins/developers who want to customize the tool).
An audio/video overview of the Cataloging Tool is available in our fourth training module, PBCore 104 at http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html#trainingfiles.
From within the Cataloging Tool, each metadata field is accompanied by a direct hyperlink to its definition and guidelines for usage in the PBCore User Guide.
The PBCore Team wishes to offer its appreciation and gratitude to those who made this possible:
-- to Paul Burrows at KUED Media Solutions/University of Utah and Dave MacCarn at WGBH: for helping to research available tools and determining that our available resources were best applied in building our own tool to serve the needs of public media
-- to Kevin Carter and Dave MacCarn at WGBH for the many hours and care they invested in building this tool, and the thought-filled ways in which they sought to address as much of the beta feedback as possible
-- to our beta testers: Geoff Freed/WGBH; Paul Burrows/KUED Media Solutions/University of Utah; Glenn Clatworthy and Julie Fenderson/PBS; Dave Rice/Democracy Now!; Regina Kammer and Michelle Futornick/Stanford University News Service; Cecilia Merkel/WPSU; Tom Cummings/WBGU; Kat Sripathy and Mary Ann Thyken/ITVS; and others who volunteered.
We believe we have addressed and implemented most -- about 90% -- of the feedback in this released version of the tool. Included in our report to the Corporation for Public Braodcasting is a list of suggested enhancements that will better serve known future needs of PBCore and its users.
The PBCore Users Group listserv (sign-up available at PBCore.org) is a resource to support the PBCore community of practice -- please share your questions, experiences and innovations.
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Mappings & Crosswalks
Available for Review in PBCore User Guide
How do the PBCore elements map to other metadata dictionaries and schemas?
In our PBCore User Guide (http://www.pbcore.org/PBCore/PBCore_Mappings.html) we provide 15 entries related to the mapping of PBCore elements to other metadata systems. Some of these documents we have authored from scratch. Others are documents generously provided by other librarians, information science researchers, public broadcasting entities, and long-time participants in the PBCore Metadata Dictionary Project.
In some cases, actual mappings are still being vetted and refined, but will be posted as soon as they are "green lighted." You will notice that some mappings are not strictly about PBCore, such as the Dublin Core crosswalk to MPEG-7 and MARC 21. We have included these seminal works because they act as bridging documents for future PBCore comparisons and mappings.
PBCore is specifically mapped in detail for both Dublin Core and IEEE LOM Learning Object Metadata (where you will find over a dozen elements related to the integration and utilization of media items in educational settings).
A background section provides context to the intricacies of harmonizing different metadata dictionaries with each other, explaining how and why element pairings are not always perfect.
To further discuss PBCore Element Mappings & Crosswalks, we highly recommend joining the PBCore User Group Community (http://www.pbcore.org/contacts/index.html#PBCoreUserGroupListserv) and sharing your questions and experiences there in the threaded discussions and listserv.
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Sample Metadata Records
Available for Review in PBCore User Guide
What do Complete Metadata Records look like with PBCore?
In our PBCore User Guide, the Full Documentation and Cheat Sheet Documentation for the PBCore metadata elements provide numerous examples of data entries. These examples are viewed on an element-by-element basis. We have now posted samples as complete metadata descriptions on a record-by-record basis where all the PBCore elements are populated with descriptive data for a given media item or object (http://www.pbcore.org/PBCore/PBCore_SampleRecords.html).
Our sample records catalog different media types and variations on "repeating elements and containers." The layout of our sample metadata records follows the structure of PBCore in an easy to read format, showing each element within its container, organized by Content Class (Intellectual Content, Intellectual Property, Instantiation, and Extensions). If there is a question about the definition and best practice for using an element, each is hyperlinked to its original documentation in the PBCore User Guide.
Containers and Sub-Containers can be repeated if there are multiple instances of metadata descriptions. For example, if there are multiple renditions or media formats for a single asset, then the container pbcoreInstantiation (with its metadata elements) is repeated for each rendition; on the other hand, the Intellectual Content for the entire asset is only entered once within a single metadata record for the entire asset and all of its multiple renditions. Likewise, if an asset has descriptions for both Temporal Coverage and Spatial Coverage, then the container pbcoreCoverage is repeated in order to enter the keywords for each type of coverage. We have even provided an example of a full-length program and the discrete segments it contains.
Every Sample Metadata Record provides a link to a complete XML version of the sample descriptions, in accordance with the PBCore XSD (XML Schema Definition).
To further discuss PBCore Metadata Records, we recommend joining the PBCore User Group Community (http://www.pbcore.org/contacts/index.html#PBCoreUserGroupListserv) and sharing your questions and experiences there in the threaded discussions and listserv.
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Case Examples of PBCore in Use
Available for review in PBCore User Guide
How is PBCore being used in the Real World?
Over several years, representatives from Public
Broadcasting public media and related institutions joined as a Working Group to craft what has become Version
1.1 of the Public Broadcasting Metadata Dictionary of descriptors
for radio and television programs, as well as related digital and
non-digital text, images, and rich media files.
In the presentation of the PBCore elements in the PBCore User Guide, each
metadata element is identified by properties, including
Name, Definition, Refinements & Encoding Schemes, Guidelines for
Usage, Obligation to Use, Repeatability, Type of Data, and Examples.
While the examples included with the element-by-element definitions offer "samples
at a glance," what is missing are actual Use Cases outlining how various
stations and organizations implement PBCore elements
in their own workflows, program descriptions, production activities,
promotions, and sharing. Reviewing actual implementations of the
PBCore is valuable because it shows how our metadata building blocks are used in real-world applications.
Three fundamental concepts should be remembered as PBCore is implemented...
- PBCore is an "enabler" metadata dictionary, and thus can foster cataloging and data sharing capabilities across a variety of information systems
- Metadata is an integral part of day-to-day workflows, and should not be treated as an after-thought or add-on feature to established and emerging work cultures within an organization
- Metadata is always applied within some sort of context, and often requires reshaping to function within a unique specification or implementation
Included in our Case Examples are PBS, Public Radio Satellite Service-ContentDepot, HD Public Radio Program Service Data (PSD), NDIIP, MIC-Moving Image Collections, Wisconsin Public Television Media Library Online, Democracy Now!, Iowa Public Television, Traffic & Program Scheduling Software, KQED Public Radio, Stanford University News Service, WGCU Public Media, WILL AM-FM-TV, NET-Nebraska Learning Services, OMN-Open Media Network, the Utah Education Network, and the NETA MediaExchange Project. (http://www.pbcore.org/PBCore/PBCore_CaseExamples.html)
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PBCore Training 104: The PBCore Cataloging Tool
Now Available On-Demand
So far, our previous Training Sessions 101-103 dealt with defining metadata, examining the PBCore metadata elements, and reviewing the PBCore XML Schema (XSD). Now Session 104: The PBCore Cataloging Tool is now available for On-Demand viewing.
PBCore Session 104: The PBCore Cataloging Tool
Discussion of the PBCore FileMaker Pro cataloging tool (releasing September 28, 2007 for download from http://www.pbcore.org/PBCore/PBCore_Tools.html). The tool facilitates the markup of descriptions for media objects and has XML data import and export capabilities for sharing and interoperability, based on the PBCore XML Schema Definition (XSD).
The on-demand versions of the trainings are posted as PowerPoint, Acrobat PDF, QuickTime Movie, Audio MP3, and iTunes/iPod Compatible Video. To download, visit our web page http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html.
The PBCore Project is administered by the Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH (NCAM). Initial PBCore development, advocacy and training is funded by the Corporation for Public Broadcasting.
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Join the New
PBCore User Group Listserv
Many of you have already joined the PBCore Listserv. We now have a new dedicated listserv group that is specifically devoted to the questions, comments, and advice of those who are actually using the PBCore metadata dictionary, or who are about to implement it.
The regular PBCore Listserv will continue as a way to communicate announcements and updates on the overall PBCore project.
The new PBCore User Group Listserv is intended as a forum for PBCore users to share successes, ask for help when stuck, find inspiration in the way others are implementing PBCore technology, and help others avoid the hurdles that some have already experienced and overcome.
We expect to expand the capabilities of our virtual PBCore User Group by creating threaded discussions that will batch together questions, comments, and answers related to common themes and concerns. These will of course be searchable discussions, thus creating a knowledge base for our PBCore Community of Practice.
PBCORE USER GROUP LISTSERV
[pbcore-users] |
Discover how others are using and implementing PBCore.
Share information about metadata extensions.
Learn more about the use of the XML Schema for PBCore.
Find out how the industry is merging PBCore into their
asset management and asset sharing systems. |
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1.
To join...
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- Send an e-mail message directly to the following automated listserv subscription service...
- In the "message body" of your e-mail, simply type...
subscribe pbcore-users your_email_address
- The subject line of messages sent from the PBCore User Group Listerv are marked with the phrase [pbcore-users].
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2.
To post messages... |
- Address your message to the listserv's e-mail address...
pbcore-users@lists.ket.org
- You now have the ability to send attachments with your posts to the listserv. We thought it important that specific documents and resources should be shared and viewed by all the subscribers.
- Please to not send requests to subscribe or unsubscribe with the discussion list's e-mail address.
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3.
To unsubscribe... |
- Send an e-mail message directly from the subscribed account to the following automated listserv subscription service...
- In the "message body " of your e-mail , simply type...
unsubscribe pbcore-users
- Please do not send requests to unsubscribe to the listserv with the discussion list's e-mail address.
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User Group participation is completely voluntary, but affords access to a vast think-tank of PBCore users and movers.
PBCore heartily extends its appreciation to Janine Hempy and KET: Kentucky Educational Television for hosting our new PBCore User Group Listserv.
The PBCore Project is administered by the Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH (NCAM). Initial PBCore development, advocacy and training is funded by the Corporation for Public Broadcasting.
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PBCore Training 103: The PBCore XML Schema
Now Available On-Demand
So far, our previous Training Sessions #1 and #2 dealt with defining metadata and examining the PBCore metadata elements. Training #3 is now availabe On-Demand in a variety of digital file formats.
PBCore Session 103. The PBCore XML Schema
Provides a general discussion of what an XML Schema is, and a look at how the PBCore XML Schema can be used to implement the PBCore metadata dictionary within information and cataloging systems. The session explains how important the XML Schema is for sharing metadata and interoperability. Foreshadowed is the impending release of our PBCore Cataloging Tool that comes complete with XML import and export functionality.
The on-demand versions of the trainings are posted as PowerPoint, Acrobat PDF, QuickTime Movie, Audio MP3, and iTunes/iPod Compatible Video. To download, visit our web page http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html.
The PBCore Project is administered by the Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH (NCAM). Initial PBCore development, advocacy and training is funded by the Corporation for Public Broadcasting.
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PBCore and Version 1.1 Presented
at SURA ViDe 2007
At the 2007 conference of the Southeastern Universities Research Association (SURA) and the Video Development Initiative (ViDe)(March 26-29), the release of PBCore Version 1.1 was highlighted in a presentation by Paul E. Burrows reviewing the current activities of the PBCore Project. Attendees were updated on the advocacy, promotion, and adoption engagements of PBCore with industry groups, national and local program producers, PBS, NPR, Content Depot, and vendors of traffic and scheduling software.
Changes made from version 1.0 to 1.1 were explained, as were the importance of the PBCore XML Schema Definition document (XSD).
New training opportunities for PBCore, both online and on-demand, were announced. As well, a call-to-action was made to the attendees to participate in PBCore's Community of Practice by joining the Listserv.
The presentation can be downloaded as a PDF document from the PBCore Resources and Links page at http://www.pbcore.org/resources/index.html
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February 2007
PBCore v1.1 XSD is Published!
The PBCore v1.1 XML Schema Definition (XSD) is published! For a complete discussion on what this means for the advancement of PBCore and facilitating our Community of Practice, see http://www.pbcore.org/PBCore/PBCoreXMLSchema.html.
Since the initial publication (April 2005) of the Public Broadcasting Metadata Dictionary (PBCore), many stations, organizations and information systems have begun to use its 53 elements to describe the intellectual content, property rights, and instantiations/formats of their media items.
At the same time, the PBCore project has been perfecting its XML Schema Definition (XSD) (for a discussion of XSD see the PBCore XML Schema web page http://www.pbcore.org/PBCore/PBCoreXMLSchema.html). This XSD is the main framework upon which all the PBCore elements, their relationships, vocabulary picklists, and data types are organized and defined. The purpose of building an accurate and meticulous XSD is to ensure that when PBCore compliant metadata descriptions are shared between data systems, the contributing system and the receiving system are both able to "machine read" and faultlessly interpret and display the descriptions.
During the exacting process of creating the PBCore XSD, we determined that some enhancements to the underlying structure of PBCore were necessary. For the most part, these enhancements are related to binding together related metadata elements (such as Title and TitleType) into new containers that are designated as "parent" elements. In a hierarchical arrangement, each parent element will collect and house associated "child" or sub-elements. Basically, what was a "flat" arrangement of the 53 PBCore elements is becoming a more structured "hierarchical" arrangement (for a discussion of hierarchical arrangements, see the Hierarchical vs Flat Elements Relationships web page http://www.pbcore.org/PBCore/PBCoreHierarchies.html).
The underlying meaning and attributes of the PBCore elements are not changing. However, their inter-dependencies and structural arrangements are. We realize these alterations may impact current adopters of the PBCore Metadata Dictionary, and we invite your comments and concerns. As well, the PBCore website has published a complete description of the changes between version 1.0 and 1.1 (see PBCore Elements Viewed by Changes, http://www.pbcore.org/PBCore/PBCore_by_ChangeOrder11.html).
We feel the improvements to PBCore will greatly enhance its usability by Public Broadcasting communities and certainly improve the precision involved in sharing metadata between various information systems.
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PBCore Training Sessions 101 & 102
Available for On-Demand Download
The first two training sessions for PBCore are available for on-demand download. Go to http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html#trainingfiles .
Each session has multiple options:
- PowerPoint (zipped file)
- PDF document of the PowerPoint slides
- QuickTime movie; 640x480 (zipped file)
- iTunes/iPod compatible movie; 320x240 (zipped file)
- MP3 audio file (zipped file)
Sessions 3 and 4 will be scheduled soon. Watch for announcements on the PBCore website (http://www.pbcore.org) as well as on the PBCore Listserv.
Session 1. PBCore 101: Introduction to PBCore (held January 31 and February 1)
An introduction to the nature of metadata and the PBCore.
Session 2. PBCore 102: The PBCore Elements (February 28 and March 1)
A more detailed look at the structure of PBCore, what each of the elements are, and how to use them to describe media objects of all kinds.
Session 3. The PBCore XML Schema: What It Is and How It Works (dates TBA)
A general discussion of what an XML Schema is, and a look at how the PBCore XML Schema can be used to implement the PBCore metadata dictionary within information and cataloging systems. Also explains how important the XML Schema is for sharing metadata and interoperability.
Session 4. Cataloging Tools for PBCore: What's Available and How They Work (dates TBA)
A detailed discussion of tools that use PBCore. The tools facilitate the markup of descriptions for media objects and have data export capabilities for sharing and interoperability.
For a complete review of available training materials for PBCore, visit our web page http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html.
The PBCore Project is administered by the Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH (NCAM). Initial PBCore development, advocacy and training is funded by the Corporation for Public Broadcasting.
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February 2007
RSS Feed has new Subscription Address
We have been undertaking some behind-the-scenes technical updates for the PBCore website, none of which impact how you currently access http://www.pbcore.org or http://pbcore.org (but which should improve performance).
Nevertheless, the RSS Feed Address you use to subscribe to the PBCore RSS Feed does have to change.
If you use an RSS news reader and now subscribe to our RSS Feed, please update or create a new feed subscription to the following XML address:
NEW RSS FEED ADDRESS =
http://www.pbcore.utah.edu/RSS/PBCoreUpdates.xml
For more information about RSS feeds in general, please access our web page WHAT IS RSS?
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January 2007
PBCore Version 1.1 is Published!
We are excited to announce that Version 1.1 of PBCore is released. Since the initial publication (April 2005) of the Public Broadcasting Metadata Dictionary--PBCore v1.0, many stations, organizations and information systems have used its 48 elements to describe the intellectual content, property rights, and instantiations/formats of their media items and intellectual properties.
During this last year, the PBCore project was finalizing its XML Schema Definition (XSD) (for a discussion of XSD see The PBCore XML Schema web page). This XSD is the main framework upon which all the PBCore elements, their relationships, vocabulary picklists, and data types are organized and defined. The purpose of building an accurate and meticulous XSD is to ensure that when PBCore compliant metadata descriptions are shared between data systems, the contributing system and the receiving system are both able to "machine read" and faultlessly interpret and display the descriptions.
In the process of creating the PBCore XSD, we determined that enhancements to the underlying structure of PBCore were necessary, resulting in PBCore v1.1. For the most part, these enhancements are related to binding together related metadata elements (such as Title and TitleType) into new "Element Containers." In a hierarchical arrangement, each Element Container collects and houses associated "child" Elements that are thematically related. Basically, what was a "flat" arrangement of the 48 PBCore elements has become a more structured "hierarchical" model of 53 elements, arranged in 15 containers and 3 sub-containers, all organized under 4 content classes.
The PBCore Website, http://www.pbcore.org, is now re-edited in support of v1.1 of the metadata elements...
The underlying meaning and attributes of the PBCore elements are not changing. However, their interdependencies and structural arrangements are, along with some modifications to data entry options (see PBCore v1.1 Changes for more information).
We are confident the improvements in PBCore v1.1 will greatly enhance its usability by Public Broadcasting communities and certainly will improve the precision and interoperability potential in sharing metadata between various information systems.
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PBCore and Version 1.1 Presented
at NETA 2007
At the 2007 conference of the National Educational Telecommunications Association (NETA)(January 25-28), the new release of PBCore Version 1.1 was highlighted in a presentation by Paul E. Burrows reviewing the current activities of the PBCore Project. Attendees were updated on the advocacy, promotion, and adoption engagements of PBCore with industry groups, national and local program producers, PBS, NPR, Content Depot, and vendors of traffic and scheduling software.
Changes made from version 1.0 to 1.1 were explained, as were the importance of the PBCore XML Schema Definition document (XSD), soon to be published.
New training opportunities for PBCore, both online and on-demand, were announced.
PDF of the NETA 2007 Presentation
QuickTime slide show of the NETA 2007 Presentation
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PBCore Training Sessions...
Online and On-Demand
As many of you are aware, a metadata dictionary used to describe the intellectual content, rights, and formats of public broadcasting media has been developed and made available for your use. It is called PBCore, or Public Broadcasting Core of Metadata Descriptions (http://www.pbcore.org). PBCore is being used in public radio and television and beyond to describe, publish and share content, and to allow others to find your content.
Sounds like a great idea, right? But what, exactly, is a metadata dictionary? For that matter, um... what IS PBCore? Learn the answers to these and other questions at a one-hour on-line presentation hosted by the PBCore Project at WGBH.
If you would like to participate in these training presentations, online and live, please go to http://pbcore.webex.com, click on the "Upcoming" tab and register for the session you want to attend. Note that you will be prompted to install the WebEx Java applet once you have completed the registration form. You may install the applet at any time prior to the session. Please contact Geoff Freed at geoff_freed@wgbh.org if you have questions about registration or the presentation itself.
After the live sessions, you can review the PowerPoint presentations and audio recordings on-demand by accessing our web page PBCore Training.
"Introduction to PBCore" is the first presentation in a series being developed by the PBCore Project. Upcoming sessions will focus on how to describe a media item using PBCore metadata descriptors and the resources being developed to support your use of PBCore, including the PBCore XML schema and the implementation of PBCore through cataloging tools (for more information see our page about PBCore Training).
For a complete review of available training materials for PBCore, visit our web page http://www.pbcore.org/PBCore/PBCore_TrainingMaterials.html.
The PBCore Project is administered by the Carl and Ruth Shapiro Family National Center for Accessible Media at WGBH (NCAM). Initial PBCore development, advocacy and training is funded by the Corporation for Public Broadcasting.
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Updated User Guide
to PBCore Version 1.1
With the publication of version 1.1 of PBCore, our online User Guide has been re-edited and updated.
The PBCore User Guide now includes the following sections...
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Cheat Sheet Published
for Using PBCore Version 1.1
The existing online PBCore User Guide provides element-by-element definitions and properties in 53 different web pages, one page per element. This is considered as our Full Documentation. Many PBCore users have also requested a quick reference guide to the elements in order to to assist catalogers when entering descriptions for media items.
A Cheat Sheet for PBCore v1.1 is now published. It is a single web page with the PBCore elements organized according to their Content Classes (Intellectual Content, Intellectual Property, Instantiation, & Extensions). The Cheat Sheet includes an alphabetical index at the top of the page, with interactive jumps to a particular element's description.
Each element begins with example data entries, followed by a brief definition for that element and guidelines for usage.
A PDF of the Cheat Sheet for PBCore v1.1 has been generated. This document includes the "bookmark" functionality of PDFs to facilitate moving around the 38 pages. Additionally, the PDF's alphabetical index harvested from the online version of the Cheat Sheet offers the same interactive jumps to particular element descriptions within the PDF document. A link is provided at the top of the Cheat Sheet in order to download the PDF.
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April 2006
PBCore's Next Steps Reviewed at
PBS Technology Conference
With version 1.0 of the PBCore metadata dictionary published via its website (http://www.pbcore.org), the project has moved into a new phase. Through the next 18-months, funded by CPB and managed by NCAM, the National Center for Accessible Media, PBCore will aggressively engage in advocacy, training, implementation, and support activites in order to build a "Community of Practice" for the dictionary and its adoption by users, vendors, and standards groups.
The recently released draft of the PBCore XSD (XML Schema Definition) advances the integration and interoperability potential of the metadata dictionary by providing a structure to map to and from other schema-based products, tools and services.
Markup tools are of growing interest. Also planned are mappings and extensions for the PBCore elements to other systems and initiatives, such as HD Radio PSD, PBS PODS, archiving/repositories, and education/classroom utilizations.
Liaisons with various groups will be undertaken, as well as building use cases and models.
The presentation, delivered by Gerry Field, is available as a PDF document in the link below.
PBCore Next Steps 2006 (pdf)
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April 17, 2006
PBCore XSD (XML Schema) Overview
Ready for Comments
The XSD (XML Schema Definition) for the PBCore metadata dictionary is available in draft form and is ready for comment from interested parties. The schema is available in both pdf and Word doc (zipped) formats.
For background information about XML schemas, link to our web page PBCore XML Schema.
To comment on the XML Schema, please submit feedback and suggestions through our PBCore listserv (sign up through the link PBCore Listserv).
Background Information: The Public Broadcasting Metadata Dictionary (PBCore) Version 1.0 is the product of a number of years of collaboration involving local and national television and radio organizations, numerous constituencies and related disciplines. It is intended as a common metadata and cataloguing resource for public broadcasters and associated communities. PBCore Version 1.0, as published on the PBCore website on April 1, 2005, defines 48 metadata elements, and remains current and valid.
(See http://www.pbcore.org for detailed information and extensive tutorials.)
There is a need to express the PBCore dictionary elements and definitions in a concise and structured manner to enable integration and interoperability across multiple systems. The PBCore XML Schema builds on the entire PBCore effort to date and takes this step. This document attempts to provide background rationale and discussion, along with the complete PBCore XML Schema and an example PBCore asset document (record).
PBCore XSD (XML Schema Defintiion) Overview for Comment April 17, 2006 (pdf and Word doc)
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Join the PBCore PROJECT Listserv
JOIN OUR PBCORE PROJECT LISTSERV...
Discover how others are using PBCore. Share information about metadata extensions. Learn more about the use of the XML Schema for PBCore. Find out how the industry is merging PBCore into their asset management and asset sharing systems. And...keep up on the latest announcements about PBCore.
The PBCore Listserv is hosted by The WGBH National Center for Accessible Media (NCAM).
PBCORE PROJECT LISTSERV
[PBCORE] |
Stay current on the latest announcements and updates for the PBCore Project. |
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1.
To join...
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- Send an e-mail message directly to the following automated listserv subscription service...
- In the "subject" line of your message, simply type...
subscribe PBCore
- The subject line of messages sent from the PBCore Project Listerv are marked with the phrase [PBCORE].
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2.
To post messages... |
- Address your message to the listserv's e-mail address...
pbcore@wgbh.org
- You now have the ability to send attachments with your posts to the listserv. We thought it important that specific documents and resources should be shared and viewed by all the subscribers.
- Please to not send requests to subscribe or unsubscribe with the discussion list's e-mail address.
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3.
To view messages in a Digest... |
- Rather than receiving each posting to the PBCore Listserv as individual message in your e-mail "in-box," you can instruct the Listserv to send messages grouped into digests. Send an e-mail message directly to the following automated listserv subscription service...
- In the "subject" line of your message, simply type...
subscribe digest PBCore
- Please do not send requests for digest mode to the listserv with the discussion list's e-mail address.
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4.
To unsubscribe... |
- Send an e-mail message directly to the following automated listserv subscription service...
- In the "subject" line of your message, simply type...
unsubscribe PBCore
- Please do not send requests to unsubscribe to the listserv with the discussion list's e-mail address.
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Read the PBCore Presentations from the
PBS Technology Conference
and NAB (April 2005)
April 2005
PBCore was the subject of three presentations during the PBS Technology Conference (April 14-16) and the National Association of Broadcasters Conference (April 18-21). Links are provided below to read or view PDF and QuickTime (slideshow) movie versions of the presentations.
PBS TECHNOLOGY CONFERENCE
At the annual PBS Technology Conference , PBCore was on the Agenda for discussion and presentation in two sessions...
- PBCore Update 2005: IT Track, 8:30am, Friday, April 15
Dennis Haarsager, Washinton State University
- PBCore Metadata Dictionary Review 2005 : IT Track, 10:15am, Saturday, April 16
Paul E. Burrows, Media Solutions, University of Utah
NATIONAL ASSOCIATION OF BROADCASTERS
At the annual NAB Show, an introduction to PBCore was presented...
- PBCore-A Common Foundation for Metadata
Session on Workflow, Asset Management & Automation , 2:30-3:00pm,Wednesday, April 20
Gerry Field, National Center for Accessible Media, WGBH
The presentations are also posted in the Resources section of our website.
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PBcore Version 1.0 is Published!
April 1st, 2005
PBCore Version 1.0 is Published!
The Working Groups for the Public Broadcasting Metadata Dictionary Project and the Corporation for Public Broadcasting are enthusiastically pleased to announce the the PBCore set of media descriptors, v1.0 is now published! The dictionary of metadata elements, their descriptions, and usage guidelines are ready for you to review in the PBCore User Guide.
With the finalization of licensing and copyright statements, the Corporation for Public Broadcasting has released and published PBCore (the Public Broadcasting Metadata
Dictionary), a standard way to describe all public broadcasting
content (video, audio, text, images, rich interactive objects). It allows 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.
PBCore emerged from its Test Implementation phase in 2004 and was
finalized for the launch of version 1.0 in 2005. Under development
since January 2002, PBCore is the result of unprecedented cross-organizational
cooperation by a team of public radio and television producers
and managers, archivists and information scientists.
Available free of charge to public broadcasting stations, distributors, vendors, partners, and related communities, version 1.0 of PBCore is ready for your use.
Licensing Agreement–This work, the PBCore (Public Broadcasting Metadata Dictionary), is licensed under a Creative Commons License.
See our Licensing Agreement via the Creative Commons for further information on employing PBCore in your projects and initiatives and how to properly attribute your use of PBCore to the Metadata Dictionary Project.
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.
Plans are under way to designate an Authority/Maintenance Organization. We anticipate this group will continue to develop and mature the PBCore Public Broadcasting Metadata Dictionary. This Authority will be asked to maintain and update the PBCore, in addition to providing user support, training, and PBCore metadata tools (see User Guide).
As part of this Authority, a Project Director will likely coordinate efforts to promote PBCore and assist you in its application for your many data creation, manipulation and transport needs.
At all times, we welcome feedback, questions, comments, concerns, requests, needs, and quandaries about the PBCore.
In order to collect and track your feedback, we are providing a brief form for completion. Click on the Feedback Form button below to fill in and submit your comments...
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Kentucky Educational Television Embraces PBCore
in their Digital Archiving Project
February 2005
Kentucky Educational Television was part of the PBCore Test Implementation Phase and became an early adopter of our metadata dictionary. KET has embarked on a project to preserve and digitize its archives of video documenting Kentucky's history in order to ensure that this treasure trove of cultural, historical, biographical, educational and public affairs programming is available for years to come. Read the press release with the link below. An upcoming article is to be published by TV Technology.
Press Release
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Flyer
Announcing PBCore Version 1.0 Release:
"Shhh...It's Time to Listen
to your Inner Librarian"
August 2004
Here's the last version of our flyer, "Shhhh...It's
time to listen to your inner librarian." It announces the impending launch
of the PBCore Metadata Dictionary, version 1.0.
PBCore Flyer, version 2
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Summary
Report for the PBMD
Test Implementations of the PBCore
June - July 2004
Alan
Baker (Test Implementation
Phase Director), Marcia
Brooks, (PBMD Project Director)
There was a sincere belief by all participants in the Test Implementation Phase
that their organization, and public broadcasting at large, needs something
like the PBCore to be widely available, and in use by a majority of public
broadcasters, if they are going to be able to capitalize on opportunities in
the future. These opportunities range from simple labor cost savings to new
business opportunities.
Also, because broadcasters have not had affordable Digital Asset Management
solutions available to them, many have delayed acting to solve pressing
problems related to storage and handling of their content, especially
that material which is born digital and resides on production and broadcast
servers. This delay created a situation where many broadcasters are
in critical need for solutions that will enable them to share content
with their production and distribution partners, as well as help ease
the burden on their current digital production, broadcast, and archive
systems.
Test Implementations - Summary Report
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Summary
Report for the PBMD
Request for Comments Surveys for
PBCore
1 March 2004
Steven
R. Vedro (RFC Phase
Director), Marcia
Brooks, (PBMD Project Director), Paul
E. Burrows and Eric
R. Carlson (RFC Survey Instruments)
Beginning in January 2002 a team of public broadcasting station and national
network representatives and invited guest experts worked to develop a draft
metadata dictionary for public broadcasting. This effort, managed by WGBH/Boston
under a grant from the Corporation for Public Broadcasting, resulted in a draft "Public
Broadcasting Core Metadata Elements Dictionary" completed by the project's "Dictionary
Team" in January of 2004. Controlled vocabulary "refinements" for
each of the metadata elements were completed on February 27th and 28th.
Immediately following this activity, a Request for Comments (RFC)
process was started. The RFC activities consisted of three data-collection
rounds:
- A preliminary survey of the "usefulness" of each of the
PBCore Dictionary element definitions and refinements/vocabularies
was conducted from February 4-10, 2004. Seventeen (17) members of
the PBCore Dictionary Working Group were invited to participate;
three (3) reviewed the survey questions and made general comments,
and ten (10) members completed the full survey.
- A larger group of thirty-two (32) invited respondents and five
(5) additional Working Group members (37 total) took the full survey
between February 16 and March 1st; and
- A small group of nine (9) "metadata experts" from the
library science, national standards, and media indexing and archivist
communities extended their comments via an "open-ended" survey.
They were also asked a number of questions relating to the "philosophy" of
metadata schemas that could inform the work of the team asked to
update and maintain the "PBCore."
PBMD RFC Invitation to Participate in the Surveys
PBMD RFC - Summary Report
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