A weblog following developments around the world in FRBR: Functional Requirements for Bibliographic Records.

Maintained by William Denton, Web Librarian at York University. Suggestions and comments welcome at wtd@pobox.com.


Confused? Try What Is FRBR? (2.8 MB PDF) by Barbara Tillett, or Jenn Riley's introduction. For more, see the basic reading list.

Books: FRBR: A Guide for the Perplexed by Robert Maxwell (ISBN 9780838909508) and Understanding FRBR: What It Is and How It Will Affect Our Retrieval Tools edited by Arlene Taylor (ISBN 9781591585091) (read my chapter FRBR and the History of Cataloging).

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More relationships between Groups

Posted by: William Denton, 25 February 2006 11:24 am
Categories: 2006 FRBR Challenge

Here’s a bit more background for the 2006 FRBR Challenge, in case it comes in handy. This diagram (it’s a link to a larger version, 73 KB PNG) puts three diagrams from the FRBR Report into one: it shows the Group 1, Group 2, and Group 3 entities, and the basic relationships between them.

Diagram: Relationships between FRBR Groups

  • Group 1 entities: work, expression, manifestation, item
  • Group 2 entites: person, family (added from FRAR), corporate body
  • Group 3 entities: concept, object, event, place

In entity-relationship diagrams the lines indicate where relationships are, and a dashed-line box around a bunch of entities means that the relationship can be with any of the entities inside. So here, a work could be about a person and a corporate body (a biography of Henry Ford and Ford Motors), or about an event and a place (the signing of the Magna Carta and Runnymede), or about a person and a place (any book about someone living somewhere for a year), or an item and an event and a person and a person and a place (Frodo and Sam throwing the Ring into Mount Doom), etc. Mix and match as you need.

The Group 2 entities can be creators and owners and producers of works. If Moreland (person) composes (creates) a symphony (work), and Jenkins (person) publishes (produces) the score (expression) in print (manifestation), and the Warminster Symphony Orchestra (corporate body) performs (realizes) the symphony, and Donners-Brebner Music puts out (produces) a CD (manifestation) of it, and Anne (person) buys (owns) a copy (item) of it to give to her sister Peggy (person) for Christmas (event), then you can see how lots of entities can all relate.

Don’t worry, there won’t be a test. This may come in handy, though.