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„Virtual Use“ & Linking Services Parameters, Development & Trends
LibMeter Case Study #1University Library Düsseldorf - ULBD
Cologne University of Applied Sciences (FH-Köln IIW)Institut für Informationswissenschaft
Seminar on Library Evaluation
(S. FÜHLES-UBACH)
Peter Ahrens Guest Lecture
V1.00a
Cologne, 7th May 2009
© Peter Ahrens, Cologne, 2009
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This LibMeter Case Study is related to the following
Slideshare Presentations on Electronic Library Usage Measuring:
LibMeter Seminar Introduction Basics LibMeter Seminar Current Practice
© Peter Ahrens, Cologne, 2009
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LibMeter Case_Study #1
Data: Public or Personal Communication, May 2009, Courtesy of I. SIEBERT & J. KREISCHE, ULBD Düsseldorf
ElectronicLinking Services
@ ULBD Uni Düsseldorf
© Peter Ahrens, Cologne, 2009
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New Generation Web Services
of Libraries: Linking
© Peter Ahrens, Cologne, 2009
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Finding Services & Linking Services offered by Scholarly Libraries on Web
Search in one System Search in many
Systems at once Point to something in
other system Links
Conventional, static Dynamic
E.g. EZB, DBIS generic Context sensitive
E.g. EZB library view OpenURL mediated
Kinds of Linking Services E-Journals = EZB
Community Standard (D) since 2001
Databases = DBIS Community Standard (D)
since 2004 (?) E-Articles = OpenURL
„Article Level Linking“ „Deep Linking“ ISO-Standard since 2006
© Peter Ahrens, Cologne, 2009
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E-Journal Access via Regensburg Cooperative Catalogue (EZB)
EZB = Electronic Journal Library
Innovative Project of University Regensburg
Long Term Support through Community & Grants
Entirely web hosted, with Libraries Views & Services (IP based or self-assigned)
Based on Cooperative Cataloguing
Established National Community Standard
Internationally Growing Per 2009 ca. 500 Participating
Libraries
Data: Jahresbericht 2007 / Universitätsbibliothek Regensburg, 2008
© Peter Ahrens, Cologne, 2009
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Looking monthly at 1 Library & 1 Parameter (EZB eJournal Linking) over time (2000-2009)
© Peter Ahrens, Cologne, 2009
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EZB eJournal Usage Curves (by months) superimposed for Years 2000-2009
Data: Courtesy of M. MÜLLER, ULB Düsseldorf from EZB-Admin, 2005-05-04
© Peter Ahrens, Cologne, 2009
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Fluctuations, PlausibilityArtifacts and External Effects
Zugriffsstatistik auf Elektronische Zeitschriften über die EZB
1172410760
9870
12001
14.607
20611
14678
25442
33211
15973
23725
13726
0
5000
10000
15000
20000
25000
30000
35000
Janu
ar
Februa
rMär
zApri
lMai Ju
ni Juli
Augus
t
Septem
ber
Oktobe
r
Novem
ber
Dezem
ber
Monat
Zugr
iffe
Zugriffe
EZB 2007
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
Januar März Mai Juli September November
Zugriffe
Annual Usage Graph (per Month) as provided by EZB Total: 2002=206.328 Total 2007= 185.361 Question: Is there growth ? Why 2002 months so different ? Other years look more like 2007
How to explain Month-to-Month variation ?
EZB 2002
Data: Courtesy of M. MÜLLER, ULB Düsseldorf from EZB-Admin, 2005-05-04
© Peter Ahrens, Cologne, 2009
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Calculating Full Years from Monthly Usage Reports
In this example Monthly EZB report counts are given Years 2000 & 2009 incomplete (extrapolation) 2002 has some artifacts in it Calculating of Relative Weight of Months
Based an all Years except 2002Data: Courtesy of M. MÜLLER, ULB Düsseldorf from EZB-Admin, 2005-05-04
© Peter Ahrens, Cologne, 2009
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Looking annually at 1 Library & 1 Parameter (EZB eJournal Linking) over time (2000-2009)
© Peter Ahrens, Cologne, 2009
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From Absolute Usage Figures to Normalized Usage (per Primary User)
© Peter Ahrens, Cologne, 2009
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EZB e-Journal Service UsageDescribing & Interpreting
Observations Introduction: 2000-2001
Initial usage „Breakout“ Long & Strong Adoption
7 Years of cont. Growth Growth / Annual Change
2000-2006 + 8-12 % p.a. Since 2008 – 3 % 2009 only extrapol.
Small reduction continues (?) Maturation
Plateau Use at Level of 10 Peak reached in 2007: 10,4 ?
Further Service Evolution !?!
© Peter Ahrens, Cologne, 2009
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Looking annually at 3 Parameters
for 1 Libraryover time (2005-2008)
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Usage Development of Different Kinds of Electronic Linking Services
© Peter Ahrens, Cologne, 2009
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Comparing 2 Parameters (EZB,SFX)
for 1 Library at frequent intervals
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Linking to e-Journal Homepages (EZB) and Deep Linking to Documents (SFX)
Variability ? Seasonality ? Growth ?Phases ?Data: Courtesy of M. MÜLLER, ULB Düsseldorf from EZB-Admin, 2005-05-04
© Peter Ahrens, Cologne, 2009
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Calculation of Rolling 12 Months Periods to visualize Trends
Add usage of 12 consecutive months for one „Rolling Year “, then move one Month
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Special Thanks for Support, Encouragement & Discussions to:
Simone FÜHLES-UBACH, FH Köln Joachim KREISCHE, ULB Düsseldorf Eric MULDER, Den Haag Marion MÜLLER , ULB Düsseldorf Britta RIEBSCHLÄGER , ULB Düsseldorf I. SIEBERT, ULB Düsseldorf
© Peter Ahrens, Cologne, 2009
LibMeterLibMeter
LibMeter Case_01
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This LibMeter Case Study is related to the following
Slideshare Presentations on Electronic Library Usage Measuring:
LibMeter Seminar Introduction Basics LibMeter Seminar Current Practice
© Peter Ahrens, Cologne, 2009
LibMeterLibMeter
About me – Key Fields of InterestsLibrariesEarly 1970s – Founding highschool libraryEarly 1980s - Converting Card Catalog to electronic (Mainframe & punchcards)Late 1980s creating bibliographic database for 5.000+ article reprints (Mac) Since 1990 consulting scholarly libraries on retrieval systems, End user friendynessHospital Libraries
Life Sciences& Statistics
Ph.D. thesis on pattern recognition in brain Several peer-reviewed publicatios
Presentations
Publishing & SoftwareEditing & Managing highschool journal for 5 yearsHeading Cycling Campaign Newsletter for 3 years
Knowledge Finder – Biomedical Search Engine •Distribution & Localization for Europe
12 years e- Ressources•Elsevier / Kluver / Ex Libris
•Science Direct,Embase.com, Ovid, SFX, MetaLib
Knowledge Management1990s Scientific Knowledge Management Software • Development & DistributionLate 1990s e-library transformation• consulting, Projects, trainingsMid 2000s Library e-services•Development of Cooperative strategies•Market Analysis & Business Planning
Information Technology in the SciencesLate 1970s first own programming on handheld computers, then Mainframes, then Apple II, then MacLate 1980s German Academic Software Price for co-developping a relational bibliographicpProgram - PARiS1990s Fuzzy logic, natural language & relevance ranked output retrievalLate 1990s – Online e-Journal and integrated search platformsMid 2000s – OpenURL, Context sensitive linking, Metasearch, ERM, Recommenders, Library 2.0
© Peter Ahrens, Cologne, 2009
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Personal Announcement:It is intended to continue this series slowly with further modules amongst others on:
Detecting, following and predicting Usage-Trends Measuring Impact of e-Service Marketing Events
International Library Comparisons Comparing Academic & Library Excellence
© Peter Ahrens, Cologne, 2009
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The End !
Thank YouPeter Ahrens
libmeter-at-gmail.com
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