Wednesday, March 15, 2006

NACO Normalization

A preprint of Thomas B. Hickey, Jenny Toves and Edward T. O'Neill's paper NACO Normalization: A Detailed Examination of the Authority File Comparison Rules is now available. It is soon to be published in Library Resources & Technical Services (LRTS).
Normalization rules are essential for interoperability between bibliographic systems. In the process of working with NACO Authority Files to match records with IFLA's Functional Requirements for Bibliographic Records (FRBR) and developing the Faceted Application of Subject Terminology (FAST) subject heading schema, the authors found inconsistencies in independently created NACO normalization implementations. Investigating these, the authors found ambiguities in the NACO standard that need resolution, and came to conclusions on how the procedure could be simplified with little impact on matching headings. To encourage others to test their software for compliance with the current rules, the authors have established a Web site that has test files and interactive services showing our current implementation.

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