[DCRM-L] WorldCat Matching Release Notes, August 2020

Tue Aug 25 08:54:31 MDT 2020

Here's an elaboration, at the link that Jay provides below:
Rare Materials Exemption for DDR is Now Up to and Including 1829

In close consultation with the Bibliographic Standards Committee (BSC) of the Rare Books and Manuscripts Section (RBMS) of the Association of College and Research Libraries (ACRL) division of the American Library Association (ALA), the demarcation date for the infrequent automated merging of duplicate records for older materials has been changed. DDR processing now exempts all bibliographic records with dates of production/publication up to and including 1829. Previously, the demarcation had been records with dates of production/publication earlier than 1800. For cartographic materials, DDR continues to exempt records with dates of publication earlier than 1901, as determined in consultation with ALA's Map and Geospatial Information Round Table (MAGIRT) Cataloging and Classification Committee (CCC). Also still exempted from DDR processing are all records identified in field 040 subfield $e as being cataloged under any of the following MARC Description Convention Source Codes<https://www.loc.gov/standards/sourcelist/descriptive-conventions.html> for rare and/or archival materials: amim, amremm, appm, bdrb, cgcrb, cco, dacs, dcgpm, dcrb, dcrmb, dcrmc, dcrmg, dcrmm, dcrmmss, dcrms, dmbsb, enol, estc, gihc, iosr, ohcm, rad, rna, vd16, vd17.
I'd like to thank Jay and OCLC for their responsiveness to input from our community.

Best,
Francis

From: DCRM-L <dcrm-l-bounces at lib.byu.edu> On Behalf Of Weitz,Jay
Sent: Thursday, August 20, 2020 4:57 PM
To: DCRM Users' Group <dcrm-l at lib.byu.edu>
Subject: [DCRM-L] WorldCat Matching Release Notes, August 2020

Between March and July 2020, OCLC installed changes to WorldCat matching, including the following improvements and bug fixes:

  *   Duplicate Detection and Resolution (DDR) Matching:
     *   Rare Materials Exemption for DDR is Now Up to and Including 1829.
     *   Improved DDR Matching of Serials with Generic Titles.
     *   Improved DDR Matching for Place of Publication.
     *   Stricter DDR Matching of Serials When Associated Corporate Bodies have Different Subordinate Units.
  *   Data Sync/Fingerprint Matching
     *   Improved Fingerprint Comparison for Place of Publication.
     *   Stricter Fingerprint Matching of Serials When Associated Corporate Bodies have Different Subordinate Units.
  *   Bug Fixes
     *   Fix to the Creation of Fingerprints for Cross-Reference Records.

These improvements have been prompted primarily by feedback from and consultation with members of the OCLC cooperative and were accomplished by the discussion, investigation, and testing work of the matching team at OCLC.

See the WorldCat Matching Release Notes, August 2020<https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhelp.oclc.org%2FMetadata_Services%2FWorldShare_Record_Manager%2FWorldCat_Matching_release_notes_and_known_issues%2F2020_Release_notes%2F095WorldCat_Matching_release_notes_August_2020&data=02%7C01%7Cfrancis.lapka%40yale.edu%7C891a87b33bcb4c2ca8c008d8454baa6b%7Cdd8cbebb21394df8b4114e3e87abeb5c%7C0%7C0%7C637335538590107416&sdata=FeT0SCsLgxwvq91oYwL9T9l7hdvzmaGjGMH4pYzCsAQ%3D&reserved=0> for more details.

Please forgive any duplication of this message.

jay
--
Jay Weitz
OCLC * Senior Consulting Database Specialist, WorldCat Metadata Quality, Global Product Management
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