Core Faceted Subject Access Interest Group

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About this Group

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Purpose: Discusses the theory and applications related to subject terminology intended for faceted application, including FAST (Faceted Application of Subject Terminology), AAT (Art and Architecture Thesaurus), LCGFT (Library of Congress Genre/From terms), and others. Serves as a forum for users and others interested in the faceted approach to subject access to compare notes and discuss further developments and implementation of subject faceting for digital projects and related topics.

This interest group is part of Core's Metadata and Collection Section.

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OFFICIAL: OCLC is enriching WorldCat records with FAST headings

  • 1.  OFFICIAL: OCLC is enriching WorldCat records with FAST headings

    Posted Sep 25, 2013 04:04 PM

    Beginning in September 2013, OCLC is systematically adding FAST headings to WorldCat bibliographic records. The records affected will already have LCSH assigned, and the routines will be applied only to records that are attributed as being English-language-of-cataloging.

     FAST-enriched WorldCat records will include “OCLCF” in the MARC 040 subfield “d” (ǂd), have one or  –- more likely -- several 6xx fields with a second indicator of “7” and subfield “2” (ǂ2) that contains the string, “fast.” Additionally, subfield “zero” (ǂ0) will be present in the machine-process-added FAST headings -- this provides the FAST authority record number.

     The processes performing this FAST enrichment work in WorldCat will run as background processes and should not adversely impact system performance. OCLC will initially prioritize the enriching records originally created by the Library of Congress and then will apply the FAST enrichment process to records from other sources. For the initial run, records will be excluded from FAST enrichment until at least six months from date of entry have elapsed.

    More detailed information about this enrichment of WorldCat is available here: