PBCore: Overview
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PBCore: Overview

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Dave MacCarn's presentation at the AMIA OpenSource Solutions meeting, February 2, 2009 at WGBH Boston

Dave MacCarn's presentation at the AMIA OpenSource Solutions meeting, February 2, 2009 at WGBH Boston

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PBCore: Overview PBCore: Overview Presentation Transcript

  • PBCore: Overview Open Source Meeting February 2, 2009 Dave MacCarn
  • What is PBCore? • ...a metadata dictionary, used to describe many different types of media items; • ...useful for locating, sharing and exchanging media items; • ...available for free to anyone, not just public broadcasters. 2
  • Who created PBCore? • Unprecedented collaboration between public television and radio united a working group of 30 representatives of local and national organizations, from a wide cross-section of disciplines and roles. • Advisors included academic and metadata experts. • Before its launch, PBCore had wide industry review and key test implementations. 3 View slide
  • What is the PBCore Structure? • PBCore v1.1 (http://www.pbcore.org; click on “User Guide” button) was published January 24, 2007 – Version 1.1 of PBCore maintains 53 elements arranged in 15 containers and 3 sub-containers, all organized under 4 content classes. • PBCore v1.2 was published November 14, 2008 – Version 1.2 of PBCore maintains 61 elements arranged in 15 containers and 4 sub-containers, all organized under 4 content classes. 4 View slide
  • PBCore Examples? • PBCore is made up of 61 elements, each describing a different aspect of a media item. • Three sample PBCore elements are: 1. title: the media item’s name; 2. creator: the person or organization responsible for creating the media item; 3. publisher: the person or organization responsible for distributing the media item. 5
  • PBCore Structure • Content Classes (Grouping of Data) – Intellectual Content • Title, Description, Genre... – Intellectual Property • Creator, Publisher, Rights... – Instantiation • Date Created, Format, Language… – Extensions
  • PBCore Structure • Containers – Needed to define XML structure.
  • PBCore Structure • Elements – The Real Data. • Title, Description, Genre, Creator, Publisher, Rights, Date Created, Format, Language…
  • Intellectual Content
  • Intellectual Property
  • Instantiation
  • Instantiation
  • PBCore Structure • PBCore often uses a controlled vocabulary to describe a media item. • Controlling the terms used, and how they are presented, not only ensures consistent description of media items, it also improves the chances of a successful search. 13
  • PBCore Structure • A picklist, or drop-down menu, is an example of a controlled vocabulary. Here is a picklist for the PBCore element 05.01, genre. 14
  • PBCore Structure • PBCore also uses a structured syntax. • A structured syntax follows specific rules of punctuation, grammar or data entry in order to provide unambiguous descriptions. • For example... • creator (element 15.01): last name, first name middle name (Welles, George Orson) • title (element 02.01): Citizen Kane • dateCreated (element 25.02): YYYY-MM-DD (1941- 05-01) 15
  • What does it mean to be PBCore compliant? • If you’re using PBCore to tag media items that you intend to share with the outside world, you must follow the dictionary rules and element obligations. • If you’re using PBCore for internal purposes only and don’t plan to share your resources with the outside world, you can apply the dictionary rules as you see fit.
  • Facility Local Broadcast Playout , Traffic & Logs Scheduling (NGIS, PODS, BroadView, ProTrack, Scout) National Program Graphics Library Distribution Tracking Program Guides Archiving & Newsletters PBCore Listing XML VOD Services (XSD framework) Production Internet Services Post-Production & Distribution Options Development, Under- Digital Asset writing, Fundraising Management & Sponsorship Rights & Stock Footage Usage Management Education Connections Programming
  • What is the PBCore XML XSD? • PBCore’s XSD defines the framework of the PBCore elements and their inter-relationships and interdependencies. • Download the PBCore XSD at http://www.pbcore.org/PBCore/PBCoreXMLSchema.html
  • PBCore v1.2 So what's different?
  • What's Next? • PBCore additions – to handle collections – Vocabulary – Radio specific extensions – Soliciting suggestions • CPB RFP American Archive Pilot – Includes some support for PBCore additions and web site
  • The PBCore Web Site • Your one-stop shop for all things PBCore: http://www.pbcore.org – user guide – list of elements in various representations • full documentation, quick index, alphabetical, cheat sheet, etc. – listserv sign-up – training materials – many other resources (metadata primer, XML schema info, etc.)