MARC Bibliographic Update: Cataloging Source Code (008/39) and field 040 Changes

On December 10, OCLC installed changes for Source and field 040 as part of the MARC Bibliographic Update, 2000. The following combines two articles that were recently posted to OCLC System News and Bits & Pieces (Nov. & Dec. issues) on the OCLC web site.

Highlights for BIBCO and CONSER participants in this message concern the change related to Source and 040 for online, original input.

• BIBCO and CONSER participants no longer have to enter their library symbol in field 040 $a manually.
• The symbol will be automatically duplicated from field 040 $c for Source values 'c' and 'blank' as it currently is for value 'd'. For complete details see the last section of this article.

MARC Bibliographic Update: Cataloging Source Code (008/39) and Field 040 Changes

On December 10, 2000, OCLC installed the third set of changes related to the MARC Bibliographic Update, 2000. This phase includes

• Changes to Cataloging Source ('Srce') and field 040 to support the changes in the definition of Cataloging Source ('Srce').
• Changes to the Cataloging Source Qualifier (DLC qualifier) to identify the elements used to retrieve records for display, and to identify non-DLC PCC (Program for Cooperative Cataloging) records in Brief and Truncated record displays.
• Changes to when national library symbols and codes display in Brief and Truncated record displays.
• Changes to the relationship between Srce values 'blank' or 'c' and field 040 subfield $a for original input.

See Technical Bulletin 236, part 2, section 5, for a summary of the changes.

The following details what has been done with the obsolete elements and highlights some changes that were not originally included in the technical bulletin. The web version of Technical Bulletin 236 has been amended to include this information.

Obsolete Source Codes

OCLC has already scanned and corrected records with Srce 'n' (7,273 records), and is in the process of scanning and correcting records with Srce 'a' or 'b' (10,384 records). With the December 10th install, all three codes were removed from the Validation Rules for cataloging.

Cataloging Source Qualifier

Technical Bulletin 236 states that the Cataloging Source Qualifier will continue to retrieve records entered by PCC libraries. However, the non-DLC PCC records will now be identified as PCC instead of DLC. Although not originally noted in Technical Bulletin 236, a few changes have also been made to the rules used to retrieve records by the Cataloging Source Qualifier.

The primary change is to rely mainly on field 040 instead of Srce to determine if a record meets the criteria for retrieval by the Cataloging Source Qualifier. The shift to field 040 was necessary because of the change in definitions of the various Srce codes.

• Srce values 'a', 'b' and 'n' are obsolete and no longer used.
• Srce values 'blank', 'd' and 'u' remain valid for input, but are no longer used to retrieve records.

In addition, subfield $d in field 040 is no longer checked, several authentication codes were added to the 042 check, and the rules used for retrieving records for serials and non-serials were combined.

The Cataloging Source Qualifier, 'dlc', retrieves records that meet the following criteria.

• Srce 'c' or
• Subfield $c of field 040 contains 'DLC' or
• Subfield $a contains 'DLC' or 'DLC' in combination with other data (i.e., 'DLC/' followed by anything else, 'DLC-' followed by anything else or '/DLC' at the end of subfield $a. Example: DGPO/DLC) or
• Field 042 contains the authentication codes 'lcderive', 'lccopycat', 'lccopycat-nm', 'lcode', 'lcnccp', 'premarc', 'lcac' 'pcc', 'lc', 'lcd', 'msc', 'nsdp' or 'nst'.

Because of the changes to the indexing rules, some records require reindexing. During reindexing users may find the number of records retrieved using the Cataloging Source Qualifier could be higher than expected. OCLC will announce when re-indexing is complete.

National Library Symbols and Codes in Brief and Truncated Record Displays

With the changes to the Cataloging Source Qualifier, there was also a change made to when the other national libraries are identified as the cataloging source in Brief and Truncated record displays that result from searches not qualified by 'dlc'. Only records with a national library symbol in field 040 subfield $a or $c are noted in the description in Brief record displays and Column L in Truncated record displays. If the library's symbol only appears in field 040 $d because it has modified the record in some way, its symbol or code is no longer noted in the Brief and Truncated record displays. The one exception is the code identifying PCC records when the authentication code, 'pcc', in field 042 is added to a record. (For a list of the national libraries and corresponding codes, see Searching for Bibliographic Records, section 8)

Source & 040 Relationships

Two additional changes were made to the relationship between Srce and field 040 subfield $a for original input.

• Users entering Srce 'c' no longer have to enter their OCLC institution symbol in 040 subfield $a. Instead, the system supplies the OCLC institution symbol automatically in subfield $a based on the symbol in subfield $c when the user validates or adds the record to WorldCat. This change was made to accommodate input by BIBCO and CONSER participants who are not cataloging at national bibliographic agencies. Note: Users transcribing old cooperative copy cataloging must continue to enter the appropriate data in 040 subfield $a.
• The other change concerns Srce code 'blank'. If users enter Srce 'blank' and nothing in field 040 subfield $a, the system supplies the OCLC institution symbol in 040 subfield $a based on the symbol in subfield $c. The system no longer supplies 'DLC'. If a user enters old LC copy, the symbol 'DLC' must be entered manually. This change is being made because Srce 'blank' no longer represents just LC cataloging.

Note: If a user enters the library's OCLC symbol in 040 subfield $a, the symbol must now be entered exactly. The system will no longer uppercase letters in the OCLC institution symbol.

Posted with the permission of Ellen Caplan, OCLC, Metadata Services Caplane@oclc.org