PBCore_2.0_Changes_100726.xls

We had a lot of repeat requests which is encouraging and has help us focus in on a few key changes needed for PBCore 2.0:

1. Collections – how to bundle or wrap multiple PBCore records into a collection or feed
3. Episodes/Chapters/Segmentation – how to use PBCore to represent complex records
4. Multiple Carriers – how to express one work across multiple carriers (e.g. one program that spans three tapes)
5. People and affiliations – how to increase PBCore’s capacity to store structured “people” data
6. Controlled vocabularies – many are outdated and need review. Also support linked data protocols by allowing references to UIDs or URLs.
7. Rights – how to make use of PBCore’s extension capabilities to express more complex rights metadata

Many of these issues point to the fact that PBCore 1.2 and 1.3 have not been fully documented on this site and new examples are needed.

We hope to remedy this and include 2.0 documentation as we continue to re-vamp the site this fall. If you have any comments or suggestions on how to address the issues outlined here or in the spreadsheet, please pass them along! Comment on this post or email pbcoreinfo@wgbh.org.

Here’s the version 1.3 XSD and documentation, which is an interim release to focus primarily on supporting upcoming American Archive projects.

PBCore v1.3:

• XSD
• Diagram View(pdf)
• Documentation(pdf)

Many thanks to those who submitted change requests for version 2.0. We’ll keep you posted as work continues to finalize the 2.0 requirements and pbcore.org redesign.

Change requests collected thus far are attached to this post as an Excel file. We will be adding more requests as we receive them. Please submit yours, comment on other requests, and add your voice to the PBCore 2.0 process!

PBCore_2.0_Changes_7.9.10.xls
PBCoreChangeRequests100723.xls

Attached to this post you’ll find a document that we’re working from as we consider changes to PBCore. It’s a grid which includes Digital Dawn’s requirements for changes to PBCore in the first column, and WGBH’s plan to address the changes in either 1.3 or 2.0 in the remaining columns. We’ve also incorporated comments from Dave Rice at AVPS – thanks Dave!

Many of the changes have to do with documentation and best practice examples… more so than schema changes. If you have an example best practice or suggestions for documentation clarity please pass them on to the WGBH team by commenting here on the PBCore blog or via our contact form! In addition, keep your change requests for 2.0 coming! We’ll be posting more about requests received so far in the coming days – requests submitted by July 25th will be considered for PBCore 2.0 (due to be published in early November).

PBCoreRequirementsGrid (PDF)

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!

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.

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

That’s quite a mouthful. To preview the differences between v1.1 and v1.2, visit our web page on the PBCore XML Schema Definition (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.

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.