340 likes | 463 Views
Circulation Data: Avery Library. Zack Lane ReCAP Coordinator July 2012. ReCAP Columbia University. Avery Circulation Data. Looks at Avery Library circulation activity Is only one measure of collection usage Majority of Avery collections are non-circulating
E N D
Circulation Data: Avery Library Zack Lane ReCAP Coordinator July 2012 ReCAP Columbia University
Avery Circulation Data • Looks at Avery Library circulation activity • Is only one measure of collection usage • Majority of Avery collections are non-circulating • No circulation data for non-circulatingcollections (or is it??) • Presents data both Avery specific and system-wide • ?Circ Desk uses several happening locations: Avery, Butler, BorrowDirect, HSL ReCAP Columbia University
Avery Circ Happening Location • Five primary types of circulation activity: charge, discharge, renewal, recall and hold • Most renewals and recalls are done in the OPAC happening location, dynamically by patrons themselves • Note: circulation data includes primarily “on campus” collections • Five primary patron groups: • ACO • GRD • REG • OFF • VIS ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
Observations • Charge volume at Avery has declined by 41.7% since FY04 • System-wide there has been a 27.4% decline • Volume of discharge predictably mirrors charges • Other types of circulation activity happen in much lower volume • Majority of renewals occur in the OPAC happening location ReCAP Columbia University
Avery Circulation by Patron Group • Closer look at patron group breakdown • More than half total charges were to ACO in FY12 • Patron Group definitions have changed: • Adjunct faculty, in 2008 grad students were given primary group OFF instead of GRD • Monthly patterns fit seasonal curves of academic calendar ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
Circ Activity by Collection • Over time Reserves and Ware have taken a smaller share of activity • Offsite activity has doubled ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
Collection Use by Patron Group • Data includes all fiscal years • Usage data by patron group differs dramatically for ACO • 95+% of activity for regular patron groups is for Reserves and Ware • ACO • Fine Arts : 45.5% • Architecture : 39.0% • Offsite : 13.1% ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
System-wide Circulation Data • System-wide circulation statistics are available for both on campus and offsite collections • Circulation data are accessible to all staff • Offsite collections can be identified by CLIO location format off,xxx. • System-wide data is available from July 2003, the date of Ex Libris Voyager implementation ReCAP Columbia University
On Campus vs. Offsite Charges • Comparison of on campus and offsite collection charges by volume • On campus charge volume declined by 27.4%between FY04 and FY12 • On campus charges have declined every year since FY04 • Offsite charge volume increased 121.3% between FY04 and FY12 • N.B. On campus collection size declines each year; offsite collections grow each year ReCAP Columbia University
ReCAP Columbia University
Monthly Onsite vs. Offsite Charges • Monthly charges of both onsite and off-site collections are in phase with the academic calendar • Peaks in the middle of Fall and Spring terms • The pattern of offsite charges is more apparent when viewed alone ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
On Campus vs. Offsite Charges • On campus and offsite charges can be compared using a ratio • The ratio of offsite to on campus increased from FY04 to FY012 • Offsite collections are accounting for proportionally more activity ReCAP Columbia University
ReCAP Columbia University
Charges vs. Renewals • Chart compares total volume of charges to renewals for Offsite collections • Graduate students and Faculty request more Offsite collections than Undergraduates • Graduate students and especially Faculty have higher renewal/charge ratios • Over time, these two patron groups tend to renew more than charge • CUL may expect to see steady or decreasing request volume as a result ReCAP Columbia University
ReCAP Columbia University
ReCAP Columbia University
More Data Available • More information about data sets can be found on the ReCAP Data Center website • Primary data categories include: accession, retrieval, delivery and circulation • Tailored data sets and analysis will be provided to staff via the ReCAP Coordinator • Please see the main ReCAP website for general information about CUL procedures and systems ReCAP Columbia University