1. Circulation Data: The Burke Library
Zack Lane
ReCAP Coordinator
July 2012
ReCAP
Columbia University

2. Burke Circulation Data
Looks at Burke Library circulation activity
Is only one measure of collection usage
Presents data both Burke specific and system-wide
Circulation Desk uses several happening locations: Burke, Butler, BorrowDirect, HSL
Burke Library data is available from June 2004, after switch from SOPHIA to CLIO
No circulation data for non-circulating collections
ReCAP
Columbia University

3. Burke Library Happening Location
Data from Burke Library Happening Location only
Five primary types of circulation activity: charge, discharge, renewal, recall and hold
Most renewal, recall and hold are done in the OPAC happening location, dynamically by patrons themselves
Note: circulation data includes primarily on campus collections
ReCAP
Columbia University

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5. Observations
Total volume of charges has remained consistent (compared to 27.4% decline system-wide)
Volume of discharge predictably mirrors charges
FY11 upswing of renewals attributed to a change in culture at Burke Circulation
Retraining of circ staff to be service oriented
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Columbia University

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7. Burke Circulation by Patron Group
Almost 2/3 of all charges are to graduate students
Patron Group definitions have changed:
UTS Affiliates, in 2007 changed from UTA to VIS
Adjunct faculty, in 2008 grad students were given primary group OFF instead of GRD
VIS includes NYTS, Auburn and visiting scholars
Pie charts break down data for FY11 only
Bar chart compares patron group charges for each fiscal year
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Columbia University

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11. Circ Activity by Collection
Data for all transactions in the Burke Happening Location
Nearly 80% is for the LC Stacks collection alone
Offsite charges are placed in the Butler Happening Location
Data unavailable for non-circulating collections
ReCAP
Columbia University

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Columbia University

13. 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

14. 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

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16. Monthly On Campus vs. Offsite Charges
Monthly charges of both on campus and offsite 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
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Columbia University

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19. 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
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Columbia University

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21. 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

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25. 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