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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 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? • What data are available to look at?
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
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
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)
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
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
ReCAP Totals • 3,538,933 total accessions through December 2009 • 41,252 requests already in FY10
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
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
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
Conclusions • Data suggest that publication dates 1993-2008 have higher retrieval rate • Total volume retrieved is significant: 30,136
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
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%)
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
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
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