-------- Original Message --------
Subject:        LC to add subject category codes to subject authorities
Date:   Wed, 6 Jun 2012 09:06:06 -0400
From:   Young, Janis <[log in to unmask]>
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[This announcement is being cross-posted to multiple lists. Please
excuse the duplication.]

No earlier than August 2012, the Policy and Standards Division of the
Library of Congress will begin an experiment to add subject category
codes (MARC 21 tag 072) to authority records for LC subject headings. It
is anticipated that the addition of this information will enhance the
usability of LCSH on the Semantic Web; assist catalogers by allowing
integrated library systems (ILSs) and resource discovery platforms to
provide a list of the subdivisions that are appropriate to headings
being assigned; and improve automatic heading string creation and
validation in ILSs and resource discovery platforms.

For the full announcement, which includes background on the need to
include subject category codes in authority records, an explanation of
the computer manipulations that they should enable, and also the
parameters of the experiment, please see
http://www.loc.gov/catdir/cpso/field_072_announcement.pdf.

Questions on this experiment may be addressed to [log in to unmask]
<mailto:[log in to unmask]>.

Janis L. Young

Policy and Standards Division
Library of Congress

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