1. 1 Currency and Quality in Bibliographic Records Ann Chapman Research Officer, UKOLN a.d.chapman@ukoln.ac.uk

2. 2 Performance Measurement Research at UKOLN BNBMARC Currency survey Multi-source Currency survey CLSCP Quality survey

3. 3 BNBMARC Currency Survey Availability of records in BNB files Samples Cataloguing - since Jan 1980 Ordering - since Feb 1988 UK Academic and public libraries Taken monthly

4. 4 BNBMARC Currency Survey Sample 120 titles per month (1440 per year) for each stage 1974 onward, UK imprint, monographs Datafile content ISBN, date of pub., record type found subject data author, title, publisher

5. 5 BNBMARC Currency Survey Results Hit rates by sector Hit rates by type of record Hit rate trends over time Dissemination Select Newsletter Papers UKOLN web pages

6. 6 BNBMARC Currency Survey

7. 7 Multi-source Currency Survey BLCMP, CURL, LASER, OCLC, SLS, Unity, BDS, Book Data, Whitaker Database access telnet, email, system terminals/software, cd-roms Uses BNBMARC ordering sample Sep. 96 - Aug. 97 extended to Aug. 98

8. 8 Multi-source Currency Survey Results Hit rates by sector Hit rates by record type Dissemination - paper and report UK Acquisitions profile 70% of sample published 1995 or later Only 2 titles not found on any database 3 variant titles found for 1 ISBN

9. 9 CLSCP Quality Survey Copyright Libraries Shared Cataloguing Programme Began late 1990 Contributing libraries Allocation of coverage of UK publishing output Monitoring - internal and external

10. 10 CLSCP Quality Survey Sample Monthly printout 145 records What is checked? Omission of data Conflict of data within record Errors in data Other errors

11. 11 CLSCP Quality Survey Reports To originating libraries –Annotated records indicating errors sent to originating libraries To Steering Committee –Monthly reports –Quarterly cumulations

12. 12 More Information UKOLN web page http://www.ukoln.ac.uk/research/ BNBMARC Currency Results Information on current UKOLN research Text of some papers on the surveys