system-wide circulation data: initial analysis stephen zweibel ccmscc 7/14/2010
TRANSCRIPT
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System-wide Circulation Data:Initial AnalysisStephen Zweibel
CCMSCC7/14/2010
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Table of Contents
1. Introduction2. Charges3. Renewals4. Holds5. Recalls6. OPAC Happening Location Details7. Patron Group Breakdown
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1. Introduction
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Purpose
• Compile existing system-wide circulation data• Organize data according to primary categories• Visualize circulation data by year and month• Observe changes in circulation patterns• Explore questions: Who, What , When,
Where, Why and How?• Share with CUL staff
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Available Data Categories
• Happening Location: physical (or virtual) location of circulation activity
• CLIO Location: owning location of collections• Patron Group: classification of patron
(undergrad, faculty, etc.)• Charge Type: variety of circulation activity• Date: FY and month of circulation activity
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Unavailable Data Categories
• Granular data is not (yet) available for circulation
• Unlike other ReCAP-related data on accession and retrieval
• Categories not available include…
• Format• Language• Publication Date• Subject/Call number• BIBL/HLDG/ITEM ID• Enum/Chron• Time• etc.
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Questions to Explore
Questions and corresponding data category:• Who: Patron Group• What: CLIO Location• When: Date• Where: Happening Location• Why: [not so easy]• How: charge Type
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• GRD: Graduate Students• OFF: Officers (Faculty, Library,
Administration)• REG: Undergraduates, Non-officer support
staff• VIS: Visitors
***NOTE: As of Summer 2007 Patron Records have only one active Patron Group
Patron Groups
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2. Charges
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570827 567739
527171
505288
474218 469217 467272
0
100000
200000
300000
400000
500000
600000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Total Charges by FY
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0
50000
100000
150000
200000
250000
FY03/04 FY04/05 FY05/062 FY06/072 FY07/082 FY08/092 FY09/102
Charges to Patrons by Patron Group:From FY03/04-09/10
GRD OFF REG VIS
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0
5000
10000
15000
20000
25000
30000
35000
400007/
1/20
039/
1/20
0311
/1/2
003
1/1/
2004
3/1/
2004
5/1/
2004
7/1/
2004
9/1/
2004
11/1
/200
41/
1/20
053/
1/20
055/
1/20
057/
1/20
059/
1/20
0511
/1/2
005
1/1/
2006
3/1/
2006
5/1/
2006
7/1/
2006
9/1/
2006
11/1
/200
61/
1/20
073/
1/20
075/
1/20
077/
1/20
079/
1/20
0711
/1/2
007
1/1/
2008
3/1/
2008
5/1/
2008
7/1/
2008
9/1/
2008
11/1
/200
81/
1/20
093/
1/20
095/
1/20
097/
1/20
099/
1/20
0911
/1/2
009
1/1/
2010
3/1/
2010
5/1/
2010
Charges by Patron Group: Monthly
GRD OFF REG VIS
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General Observations on Charges
• In phase with academic calendar• Large quantities, between 450,000 and
600,000• Decrease of -18.1% from FY03/04 to FY09/10• Decline trend strongest between FY04/05 and
FY07/08• Since FY07/08 the volume has leveled off
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Patron Group Observations on Charges
• Decline trends for GRD and REG• Slight increase for OFF• Little fluctuation for VIS• Peaks for GRD precede REG by one month in
both Fall and Spring• Larger volume for GRD in Fall than Spring
term; even volume for REG• REG volume now less than GRD
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Zack’s Deep Thoughts• Trend of total charges is downward due to use of
e-resources• Leveling off indicates that use of print copy is still
strong and critical• Faculty charges have increased due to more Grads
serving as adjunct faculty (with OFF privileges)• Grads peak a month before Undergrads because
of course requirements (tilted towards written papers instead of tests)
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3. Renewals
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514,245
538,009 538,613
495,461
396,758
373,581
403,639
0
100000
200000
300000
400000
500000
600000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Total Renewals by FY
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0
50000
100000
150000
200000
250000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Renewals to Patrons by Patron Group:From FY 03/04-09/10
GRD OFF REG VIS
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0
5000
10000
15000
20000
25000
30000
35000
40000
450007/
1/20
039/
1/20
03
11/1
/200
31/
1/20
043/
1/20
045/
1/20
047/
1/20
049/
1/20
04
11/1
/200
41/
1/20
053/
1/20
055/
1/20
057/
1/20
059/
1/20
05
11/1
/200
51/
1/20
063/
1/20
065/
1/20
067/
1/20
069/
1/20
06
11/1
/200
61/
1/20
073/
1/20
075/
1/20
077/
1/20
07
9/1/
2007
11/1
/200
71/
1/20
083/
1/20
085/
1/20
087/
1/20
08
9/1/
2008
11/1
/200
81/
1/20
093/
1/20
095/
1/20
097/
1/20
09
9/1/
2009
11/1
/200
91/
1/20
103/
1/20
105/
1/20
10
Renewals by Patron Group: Monthly
GRD OFF REG VIS
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General Observations on Renewals
• In phase with loan period due dates• Large decrease in renewals, -32.6% from
FY03/04 to FY09/10• Noticeable decline trend between FY04/05
and FY07/08
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Patron Group Observations on Renewals
• REG renewal phase changes after January 2008
• Large decrease by REG, -67.1%• Significant decrease by GRD, -26.2%• OFF and REG were equal in FY03/04; OFF
much higher in FY09/10
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Zack’s Deep Thoughts
• REG renewal phases changes because of loan period change from 4-weeks to 1-term for circulating collections in January 2008
• Faculty tend to hold books longer than Grads or Undergrads; visible later on in 7. Patron Group Breakdown
• Undergrads renew less because loan period is for semester, typical duration of single course
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4. Holds
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3,661
5,342
5,9775,784
5,460
6,431 6,365
0
1000
2000
3000
4000
5000
6000
7000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Total Holds by FY
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0
500
1000
1500
2000
2500
3000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Holds to Patrons by Patron Group:From FY 03/04-09/10
GRD OFF REG VIS
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0
50
100
150
200
250
300
350
400
Holds by Patron Group: Monthly
GRD OFF REG VIS
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General Observations on Holds
• In phase with academic calendar• Overall lowest volume of all four charge types• Increase in hold volume from FY03/04 to
FY05/06• Hold volume declines after FY05/06 with one
exception (FY08/09)• Trends are more erratic than other charge
types
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Patron Group Observations on Holds
• GRDs have large increase followed by decrease
• Monthly data is more erratic for all groups except GRD
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5. Recalls
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6,593
6,0436,262
10,191
11,065 11,105
11,825
0
2000
4000
6000
8000
10000
12000
14000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Total Recalls by FY
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0
1000
2000
3000
4000
5000
6000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Recalls to Patrons by Patron Group:From FY 03/04-09/10
GRD OFF REG VIS
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0
100
200
300
400
500
600
700
800
Recalls by Patron Group: Monthly
GRD OFF REG VIS
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General Observations on Recalls
• In phase with academic calendar• Increase in recalls from FY05/06 to FY06/07• Relatively steady volume of recalls
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Patron Group Observations on Recalls
• Large increase for GRD starting in FY05/06• Large increase for OFF starting in FY06/07• GRD always most recalls, OFF catching up
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Zack’s Deep Thoughts
• The increase in volume between FY05/06 and FY06/07 may be attributable to a change in emphasis
• CLIO and staff began emphasizing recalls instead of holds
• OFF delayed increase linked to patron record change implemented in Summer 2007 (Grads as adjunct faculty)
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6. OPAC Happening Location Details
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0
1000
2000
3000
4000
5000
6000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Holds: OPAC vs Everywhere Else
OPAC Everywhere Else
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0
2000
4000
6000
8000
10000
12000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Recalls: OPAC vs Everywhere Else
OPAC Everywhere Else
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0
100000
200000
300000
400000
500000
600000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Renewals: OPAC vs Everywhere Else
OPAC Everywhere Else
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General Observations on OPAC• OPAC Happening Location transactions represent
actions taken directly in CLIO by patrons without staff intervention
• “Everywhere Else” (all other happening locations) represents actions taken by staff on behalf of patrons
• Charges must take place at a physical circulation desk - can not take place in OPAC
• Majority of recalls/renewals in OPAC• Majority of holds not in OPAC
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Zack’s Deep Thoughts• Staff tend to place holds for patrons• Patrons tend to place recalls for themselves• Pre-Voyager, NOTIS environment did not allow
online holds, recalls or renewals• Upward trend in OPAC recalls suggest a learning
curve, associated to adapting to new technology• Decline trend in Everywhere Else suggests that
patrons have become less dependent on staff mediation
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7. Patron Group Breakdown
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0
50000
100000
150000
200000
250000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
GRD by Charge Type: FY 03/04-09/10
GRD - Sum of Charges GRD - Sum of Renewals GRD - Sum of Recalls GRD - Sum of Holds
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0
20000
40000
60000
80000
100000
120000
140000
160000
180000
200000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
OFF by Charge Type: FY 03/04-09/10
OFF - Sum of Charges OFF - Sum of Renewals OFF - Sum of Recalls OFF - Sum of Holds
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0
50000
100000
150000
200000
250000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
REG by Charge Type: FY 03/04-09/10
REG - Sum of Charges REG - Sum of Renewals REG - Sum of Recalls REG - Sum of Holds
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0
5000
10000
15000
20000
25000
30000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
VIS by Charge Type: FY 03/04-09/10
VIS - Sum of Charges VIS - Sum of Renewals VIS - Sum of Recalls VIS - Sum of Holds
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Observations
• Charge/Renewal ratio is different for all four primary patron groups
• REG charges more than renews, much more starting FY07/08
• GRD charges more than renews• OFF renews more than charges• VIS renews more than charges, much more
starting FY06/07
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Zack’s Deep Thoughts• Charge/Renewal ratios are consistent with staff
perceptions• Faculty are more likely to hold onto the books that
they have than charge out new ones• Undergraduates have little need to renew now that
loan periods extend for a semester• Grad students will charge a lot of material and hold it
over more than one term• Visitors hold books longer since obtaining OPAC
renewal permission in course of patron record changes of Summer 2007
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Bonus!
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Borrow Direct
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9,368
11,224
13,118
16,133
18,012 17,968 18,027
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Borrow Direct Circ Desk Charges by FY
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0
500
1000
1500
2000
2500
Borrow Direct Circ Desk Charges by Month
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Observations on Borrow Direct
• In phase with academic calendar• Charges are tallied for outgoing Borrow Direct
requests• Incoming Borrow Direct requests are not
charged in CLIO• There was a 100% increase in outgoing
volume between FY03/04 and FY07/08• Since FY07/08 the volume has leveled off
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On-site vs. Off-site Collection Use
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0
100000
200000
300000
400000
500000
600000
FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10
Onsite Vs. Offsite Charges
Offsite Onsite
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Observations on On-site vs. Off-site
• On-site charges remain significant despite substantial migration of print collections to off-site
• Suggests that selection for transfer was well made
• Spike in off-site charges in FY08/09 may be attributable to the Google Project