Bibliographic records contain standard numbers but the numbers are in an invalid format and cannot be used in the match and merge system to be included in the SILO Locator. For example, the ISBN may contain only 9 digits. According to the SILO Locator Minimal MARC Record Input Standards the ISBN must be in field 020 subfield a and be either 10 or 13 digits, with or without hyphens and no spaces between digits. UPC numbers must be in field 024 subfield a and contain all 12 digits without spaces or hyphens between digits.
RECOMMENDATION: This exception may be caused by two different reasons.
- The first is that the library staff may be doing original cataloging and not following the standard by entering standard numbers in the correct format. Some cataloging utilities do not contain validity checks on the standard number fields so the practice is allowed. If this is the case, library staff should be encouraged to discontinue the practice of original cataloging, instead they should subscribe to a cataloging service that provides high-quality MARC records. Consulting should focus on the advantages of purchasing MARC records (Accurate and complete records, faster processing time, fewer exceptions in SILO upload, more searching match points in the local catalog). The price issue could be addressed by counting the library staff's time as money.
The second reason for an invalid standard number may be that the cataloging and export utility the library is using may be changing the format of the standard number fields. If this is the case, more investigation into the cataloging software is required. Report this finding to State Library staff who will work with the software vendor to find a fix for the problem.