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ReCAP Collections Analysis: Avery Library

ReCAP Collections Analysis: Avery Library. Zack Lane ReCAP Coordinator 2/4/10. Answers to Basic Questions. How many books transferred? Avery in overall picture of ReCAP? What is delivered to Avery? What is retrieval rate? What can we learn from retrieval data? What do we know about EDD?

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ReCAP Collections Analysis: Avery Library

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  1. ReCAP Collections Analysis:Avery Library Zack Lane ReCAP Coordinator 2/4/10

  2. Answers to Basic Questions • How many books transferred? • Avery in overall picture of ReCAP? • What is delivered to Avery? • What is retrieval rate? • What can we learn from retrieval data? • What do we know about EDD? • What data are available to look at?

  3. Avery Library • Factors unique to Avery Library • Collections are mainly non-circulating (exception Ware Collection) • Collections may only be delivered to Avery Library or Avery D&A • “Special collections” • Seven off-site CLIO locations: off,ave off,fax off,war off,avr off,far off,avda off,vmc

  4. Accession Statistics • In FY09 Avery transferred 20,974 items to ReCAP (cf. FY08: 18,084) • Avery has accessioned 190,694 items since ReCAP opened in 2002 • This accounts for 6.1% of CUL’s total holdings at ReCAP • Avery began transferring special collections FY09

  5. Avery Accessions FY09

  6. CUL Accessions FY09

  7. Avery Accessions

  8. Avery Accessions by FY

  9. Avery Holdings by CLIO Location

  10. CUL Accessions FY02-FY09

  11. Avery Classics / D&A • 3,032 items accessioned in FY09 from Avery Classics • Transfer from Classics to ReCAP took place April/May 2009 • 901 items accessioned in FY09 from Avery Drawings and Archives (2,048 total)

  12. Retrievals • Total retrievals increase every year and fluctuate correlating to academic calendar • Total deliveries of off-site Avery collections to CUL patrons and staff • FY09 : 8,048 • FY02-FY09 : 30,429

  13. Request Analysis • Data from CUL’s archive of ReCAP requests • Supplemented by granular data from CLIO • Accessions data not available for FY10 • Data has been used for: • Net Retrieval Rate • High Volume Limit • Time of Request

  14. ReCAP Totals • 3,538,933 total accessions through December 2009 • 41,252 requests already in FY10

  15. Goals • Provide relevant data and analysis to decision-making staff • Inform selection process for direct-to-ReCAP transfers • Help staff better inform patrons • Assist policy creation

  16. Retrieval Rate • Retrieval rate is a measure of collection use • Target retrieval rate is 2.00% • Percentage of ReCAP collections retrieved during a twelve-month period (Calendar or FY) • One technique to gauge overall use • Important factor for ReCAP facility staffing model

  17. Barcode Delivery Location Default Delivery Location Date Time Type Patron Group Bib ID Format Publishing Date Language Title Holdings ID Call Number Enumeration/Chronology Item ID CLIO Location UNI Hashed UNI Year of Request Month of Request Day of Request Hour of Request Minute of Request Data Categories

  18. Conclusions • Data suggest that publication dates 1993-2008 have higher retrieval rate • Total volume retrieved is significant: 30,136

  19. System-wide Request by Language • 326,591 total requests 2002-2009 • 203 different languages requested • English accounts for 63.27% of all requests • Top 10 languages account for 93.53% of all requests

  20. Request by Language • 34,112 total requests from Avery2002-2009 • 52 different languages • English accounts for 56.90% of all requests (cf. Butler 62.73%) • Top 10 languages account for 97.90% of all requests (cf. Butler 92.11%)

  21. Language Analysis

  22. EDD Requests • EDD requests account for 3.11% of total requests for Avery collections • About half system-wide proportion 5.56% • EDD requests for Avery collections began increasing noticeably in 2007 • Request volume has grown at a regular rate since 2007

  23. PHYS vs EDD Requests for Avery Collections

  24. PHYS vs. EDD System-wide

  25. Monthly EDD Requests for Avery Collections

  26. EDD Requests by Collection

  27. Physical Requests by Collection

  28. Available Data • Accessions • ReCAP : customer code • CUL : granular data • Retrievals • ReCAP : customer code • CUL : granular data • Deliveries • ReCAP : breakdown by customer code • Circulation • CUL : Active charges, discharges, CLIO location, Happening Location

  29. Data Sources • Bibliographic Record Statistics: http://www.columbia.edu/cu/libraries/inside/clio/statistics2/bibfile/ • Circulation Statistics: https://www1.columbia.edu/sec/cu/libraries/inside/clio/statistics/circulation/xls/circ_all_xls.html • ReCAP Statistics: https://www1.columbia.edu/sec/cu/libraries/bts/recap/data.html

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