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usage statistics of online journals background, trends

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Title: usage statistics of online journals background, trends


1
usage statisticsof online journalsbackground,
trends prospectswith a local elaboration
  • Peter van Laarhoven (p.j.b.m.van.laarhoven_at_rug.nl
    )
  • with Ismail Fahmi
  • LIBER Groningen
  • July 8, 2005

2
overview
  • background
  • usage statistics vs. qualitative use studies
  • collection evaluation management
  • trends
  • before COUNTER
  • COUNTER
  • prospects
  • usage research beyond COUNTER?
  • local elaboration

3
background -1qualitative use studies
  • ongoing tradition
  • survey research
  • reading/reader behavior attitudes
  • use usefulness of electronic vs. print journals
  • factors in behavior differences
  • changes over time
  • examples
  • Tenopir King (1977-)
  • eJust/HighWire (2002)
  • Voorbij (2005)

4
background -2usage statistics
  • journal hosting on publishers web servers
  • analysis of weblogs
  • date, time, document, workstation, referrer
  • cookies for session tracking
  • data reduction ? user activities
  • searching
  • browsing
  • accessing full text

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background -2usage statistics
sample webserver log
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background -3collection management
  • ICOLC
  • Guidelines for Statistical Measures of Usage of
    Web-Based Information Resources (1998 2001)
  • main criterion full-text usage (html pdf)
  • by journal and subject
  • by stakeholder groups within the university
  • by consortium member
  • by budget spent on journal / package
  • Luther (White Paper on Electronic Journal Usage
    Statistics, Oct 2000)
  • the library is dependent on the publisher for
    datavital for its budget justicifation
    allocation

7
trends -1before COUNTER
  • Luther common concerns
  • lack of comparable data
  • what is counted and how?
  • incomplete usage data
  • how to count journals served from multiple
    platforms?
  • lack of context
  • how to judge the value of an article/journal from
    user activities?
  • publishers reluctant to be judged on weak data
  • still, usage statistics began to be
    releasedfirst for databases and later for
    journals

8
trends -2COUNTER
  • COUNTER (March 2002 -)Counting Online Usage of
    Networked Electronic Resources
  • COUNTER Code of Practice for Journals and
    Databases
  • release 1 December 2002
  • release 2 April 2005
  • a reliable set of basic usage reports( not an
    ever-expanding list of increasingly detailed
    usage reports)
  • compliance protocol with audits
  • set of standard metrics usage reports
  • XML DTD for usage reports

9
trends -3COUNTER
sample report American Chemical Society
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prospectsbeyond COUNTER?
  • compliance growing
  • minimum standard seen as a maximum standard
  • evaluation research questions
  • is online usage matching print subscriptions?
  • who uses what within the university, and what
    for?
  • how many articles are used, and which?
  • what is the age of articles used?
  • what is the cost per use?

17
local elaboration -1organization workflow
  • account management
  • initial setup
  • part of site administrator function
  • processing of usage data
  • manual download
  • integration of subaccounts
  • consolidation of multiplatform journals
  • presentations analysesfor specific evaluations
    decisions

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local elaboration -2big deal gain?
usage of Elsevier journalsrelated to previous U
of Groningen print subscriptions
21
local elaboration -3usage of articles
distribution of usage over articles
22
local elaboration -4most-used articles
top-10 of most used Elsevier articles in 2004
23
local elaboration -5most-used articles
top-10 of most-used Lippincott WW articles in
2004
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local elaboration -6use-age of articles
  • some exploratory findings
  • article obsolescence slower than expected
  • use half-life
  • overall 1 year
  • range 6 months - 5 years
  • related to discipline?
  • life sciences high
  • management, organization, etc low
  • but high within-subject variation

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(not so)local elaboration -7entry points of
DOIs
where do you landwhen you follow a publishers
DOIs?
49
conclusionlies, damn lies, and usage
statistics?with a wink to Mark Twain
  • findings
  • big deals
  • usage per article
  • article obsolescence
  • usage of backfiles
  • possible effects of scale, linking practices c
  • workload of local processing
  • usage statistics suitable for monitoring,not for
    selection or attrition

50
conclusion -2lies, damn lies, and usage
statistics?
  • collection evaluation multi-criterion
  • expert opinion
  • outgoing citations
  • curricular use
  • full-text usage
  • non-local journal qualities (impact, price, etc.)
  • session-level usage data
  • computer-to-computer data collection

51
conclusion
thank you
Comments questions to p.j.b.m.van.laarhoven_at_ru
g.nl
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