[OPEN-ILS-DEV] Deduping, 856's and located URIs

[sarahc at zionsville.lib.in.us]

Cataloger's perspective on subfield h re: deduplication.


> Message: 1
> Date: Thu, 06 Dec 2012 15:12:29 -0600
> From: Justin Hopkins <justin at mobiusconsortium.org>
> Subject: [OPEN-ILS-DEV] Deduping, 856's and located URIs
> To: Development Evergreen list
> 	<open-ils-dev at list.georgialibraries.org>
> Message-ID: <50C10A3D.7090803 at mobiusconsortium.org>
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>
> Finding duplicates that aren't: The 245 is used by the script to
identify potential duplicates, but it doesn't look at the $h
which
> according to good cataloging standards would be a reasonable
place
> to
> put something like [Overdrive downloadable e-audiobook]. The
> result is
> that bibs with physical items attached can chosen as subordinate
bibs
> with the bib from the electronic resource being picked as the
> lead.

I just wanted to jump in and point out that this would be a
non-standard way to use the subfield h. There's actually a
controlled vocabulary that's supposed to be used in that subfield.

I can't speak for SCLends, but based on my experience with our
consortium, I suspect it's precisely because libraries have a
tendency to develop local policies like that for 245$h that their
script ignores it. If you have 4 different records for the same
DVD and the 245$h is different in every one, e.g. [videorecording]
(according to standard), [DVD], [videorecording (DVD)], and
[videodisc], you don't want that to prevent your records from
merging. Or if libraries use various terms in the subfield h for
large print and some don't it for large print at all, etc., etc.

So I wouldn't use the subfield h as a basis of preventing the
merge. Also, the script would be less useful down the line because
245$h is eliminated in RDA. As to a better way...depending on how
reliable your fixed field information is, that might be a way to
prevent the electronic resources from merging with the print
versions, but focusing on the 856 itself might be the most direct
thing to do.




Sarah Childs
Senior Cataloger
Hussey-Mayfield Memorial Public Library
250 North Fifth Street
Zionsville, IN 46077
317-873-3149 x13330
sarahc at zionsville.lib.in.us