Difference between revisions of "Profile Guide Step 2.2"

Revision as of 09:20, 6 August 2008

Step 2.2 Question

Numeric Field Validation

MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collection from being included in the system indexes. MARS 2.0 software can validate the structure of numeric data in the following fields:

010: Library of Congress Control Number (LCCN)
020: International Standard Book Number (ISBN)
022: International Standard Serial Number (ISSN)
034: Coded Cartographic Mathematic Data (CCMD)

Historical Fact

LC changed the structure of the LCCN beginning on Jan. 1, 2001 in order to accommodate a four-digit year. The length of the control number remains 12 characters as it was prior to the change. However, in the old LCCN structure (A), suffixes were occasionally used. Under the new LCCN structure (B), the location of elements is slightly altered to accommodate a four-digit year. Under both structures, the prefix, year and serial number are the basic elements required to make a LCCN unique.

Please indicate on Step 2.2 what kind of validation you would like performed on your 010, 020, 022 or 034 fields. Choosing “Yes, With these modifications” means that you would like the MARS 2.0 software to perform a modified validation (e.g., validate fields 020 and 022, but not fields 010 or 034).