Profile Guide Chapter 3

Chapter three is one of our most comprehensive documents, and as such is too large for a single page.

Overview

Overview The first phase of MARS 2.0 Authority Control comprises a wide variety of routines that update and correct individual subfields and contiguous pairs of subfields. These corrections are based on a number of subfield update tables maintained by MARS 2.0 authorities librarians.

Authority Cleanup cleans up headings to facilitate matching on national-level authority records during the matching process. MARS 2.0 Authority Cleanup subfield correction routines include:

• Updating obsolete forms of subdivisions to the current form
• Correcting common typographical errors
• Expanding abbreviations in subject subfields to their fuller form
• Converting common direct geographic subdivisions to their indirect form
• Deleting subject subdivisions which have been canceled or discontinued
• Correcting spacing, capitalization, and punctuation

Topics

• Question 1 Perform Authority Control
• Question 2 Normalization of Generic Name Headings