|October 21, 2004 [posted]|
|Updating Serial Holdings in DOCLINE® and OCLC®|
he National Library of Medicine and OCLC currently provide batch updating of holdings data for libraries that have summary serial holdings data in DOCLINE and local data records (LDRs) in OCLC's WorldCat® database. This batch update functionality serves as an alternative to the time-consuming task of manually maintaining holdings in both DOCLINE and WorldCat. Currently, a library can maintain holdings online in both systems, maintain holdings online in DOCLINE and have holdings automatically provided to OCLC on a quarterly basis, or maintain holdings in OCLC and have OCLC create a SULOP (Serials Union List Offline Product) file that NLM will use to update holdings in DOCLINE. An understanding of the batch update functionality is necessary in order to choose the right process for each library.
Providing Serial Holdings from DOCLINE to OCLC
Schedule: Data extracted for OCLC on the first full weekend of January, April, July, and October. OCLC updates the data in WorldCat within one month after receipt of data.
Authorization Steps: Add your library's OCLC institution symbol to OCLC Symbol 1 field. Update DOCLINE Institution record's Batch Update Authorization field to "Send Holdings to OCLC". Both fields are located on the Membership page in the Serial Holdings section. Note: OCLC offers a tool called the OCLC Participating Institutions Search that can help you find a library's OCLC symbol.
Preparation: Holdings that have been deleted from DOCLINE prior to the date that the first file is sent to OCLC will not be provided as deletes to OCLC. If your library would like to manually delete these records from WorldCat and you would like a list of holdings that were deleted since the implementation of web-based DOCLINE Serial Holdings in June 2000, contact your Regional SERHOLD Coordinator. A listing of Regional SERHOLD Coordinators is located at the bottom of the SERHOLD Fact Sheet.
If you have old local data records in WorldCat that are no longer useful because they have not been adequately maintained, you can request that OCLC perform an irreversible scan/delete of all your existing OCLC Union List holdings (LDRs). A scan/delete will give you a clean slate, so to speak, prior to the first batch update of DOCLINE serial holdings that you authorize NLM to submit to OCLC. If you wish to go this route, you must request the scan/delete at least one month prior to the SERHOLD extract in which you plan to begin participating. To request a scan/delete of your WorldCat LDRs, contact your OCLC Regional Service Provider.
Holdings not updated in OCLC:
Data Extraction Details: Holdings information is extracted from DOCLINE for libraries that have authorized NLM to Send Holdings to OCLC. If the Institution's Batch Update Authorization Date is equal to or greater than the date of the last extraction, all holdings for that library are provided to OCLC. If the Institution's Batch Update Date is less than the date of the last extraction, adds, updates, and deletes for that library are provided to OCLC.
Error reports: If a record appears in an error report, the record was not added to or deleted from WorldCat. When the batch update file is produced, NLM notifies libraries via DOCLINE Serial Holdings Reports of any known errors. Each library is responsible for reviewing these reports and taking the appropriate action by adding holdings to OCLC, adding bibliographic records to OCLC when necessary, and/or notifying NLM of OCLC numbers when the OCLC number is not in the NLM authoritative bibliographic record that is displayed in NLM's online catalog, LocatorPlus, or the NLM Catalog database on Entrez. Instructions about each type of problem are located at the beginning of the error reports. Error reports will only be supplied when there are known errors. If OCLC notifies NLM of any problem records after the data are loaded, NLM will either fix the problem so that the record will be updated in OCLC with the next batch update or will notify the appropriate Regional DOCLINE Coordinator who will then contact the individual library. Error reports include:
Libraries that should not use this function: Libraries that share an OCLC institution symbol but do not have all of their libraries' holdings in DOCLINE.
Providing Serial Holdings from OCLC to DOCLINE
Cost: The cost for producing the SULOP is determined by your library or library group's agreement with OCLC or an OCLC Regional Service Provider. NLM provides their part of the batch update processing for free.
Schedule: The schedule for producing the SULOP is determined by your library or library group's agreement with OCLC or an OCLC Regional Service Provider. NLM will process the file as soon as we retrieve it from OCLC.
Authorization Steps: Add your library's OCLC Code to OCLC Symbol 1 field. Update your library's DOCLINE Institution record's Batch Update Authorization field to "Update Holdings from OCLC". Both fields are located on the Membership page in the Serial Holdings section. Note: OCLC offers a tool called the OCLC Participating Institutions Search that can help you find a library's OCLC symbol.
Holdings not added to DOCLINE:
Note: All holdings that are not added will be detailed in the OCLC to SERHOLD batch update error reports.
Data Extraction Details: Upon notification from the library or the library group representative that an OCLC file is ready for pickup, a Regional SERHOLD Coordinator notifies NLM via DOCLINE to pick up the file from OCLC. On the evening of this notification, NLM retrieves and processes the file. Holdings data are analyzed and if at least one holdings record will be added to DOCLINE, all holdings for that library are deleted. In addition, all properly formatted holdings are extracted from OCLC data and added to DOCLINE for libraries that have authorized NLM to "Update Holdings from OCLC". All errors and statistics that include the number of holdings prior to the batch update, the number of holdings after the batch update, and the number of errors are reported in an OCLC to SERHOLD Batch Update report. This report is provided to the individual libraries and to the Regional Coordinator that originally notified NLM to pick up the report from OCLC.
Error reports: If a record appears in an error report, the record was not added to DOCLINE. When the batch update file is produced, NLM notifies libraries via DOCLINE Serial Holdings Reports of any known errors. Each library is responsible for reviewing these reports and taking the appropriate action by adding holdings to DOCLINE, updating records in OCLC when necessary (it is best to update the record in OCLC so that it will be added properly to DOCLINE the next time a OCLC to SERHOLD batch update is initiated), and/or notifying NLM of new records to be added to the NLM online catalog LocatorPlus if the records are in scope. (See the FAQ If I cannot find a journal title in LocatorPlus, how can I add my institution's holdings for that title? for information.) Instructions about each type of problem are located at the beginning of each section of the error reports. Error reports only display when there are records that fall into that category. Error reports include:
Libraries that should not use this function: Libraries whose WorldCat holdings are incorrectly formatted.
Using SERHOLD to OCLC or OCLC to SERHOLD batch update can provide libraries with the benefit of only updating holdings in one holdings database if the holdings are up-to-date and the batch update method that is most beneficial to the library is chosen. Further questions about batch updating should be referred to your Regional SERHOLD Coordinator or to NLM at email@example.com
By Deena Acton
Acton D. Updating Serial Holdings in DOCLINE® and OCLC.® NLM Tech Bull. 2004 Sep-Oct;(340):e8.