Re: is FRBR relevant?

On 9 Aug 2010, at 13:32, William Waites wrote:

> On 10-08-09 12:19, Jodi Schneider wrote:
>> 
>> What happens when the LCSH heading changes?
> 
> Does this happen?

Yes, more often than you'd think. 

John Mark Ockerbloom analyzed his online books catalog recently, and found out that "286 unique subjects that needed replacement– over 3/4 of 1% of my headings, in less than 4 years." That's in a small catalog with 40,000 records (1% of the size of UPenn's). He made some changes (e.g. Cookery to Cooking) along the way when he heard about changes. http://everybodyslibraries.com/2010/07/31/keeping-subjects-up-to-date-with-open-data/

Ockerbloom's solution -- using RDF from the LC authorities and vocabularies service -- is a nice example of using open data, and his scripts might be useful for libraries that do this, along with manual flags.


> How is this handled now? Do
> libraries have to go and redo their entire
> catalogues?

Good question - any catalog maintainers around to say?

> 
> I'm just guessing but I would think that they
> would add headings from time to time but they
> would rarely if ever delete or change an existing
> one. Although I could be very wrong...

See the post for examples, alas. I'm looking for a list of the *kinds* of changes and deletions made.

> 
> Cheers,
> -w
> 
> -- 
> William Waites           <william.waites@okfn.org>
> Mob: +44 789 798 9965    Open Knowledge Foundation
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> 
> RDF Indexing, Clustering and Inferencing in Python
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