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Measuring the Effectiveness of Facets in the Next Gen OPAC 2008 Library Assessment Conference. Kathleen Bauer and Alice Peterson-Hart Yale University Library Usability and Assessment. Usability process. Assess current behavior Conduct usability protocol testing Share findings with staff

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measuring the effectiveness of facets in the next gen opac 2008 library assessment conference

Measuring the Effectiveness of Facets in the Next Gen OPAC2008 Library Assessment Conference

Kathleen Bauer and Alice Peterson-Hart

Yale University Library Usability and Assessment

usability process
Usability process
  • Assess current behavior
  • Conduct usability protocol testing
  • Share findings with staff
  • Implement changes and assess effect
assess current behavior
Assess current behavior

Collecting evidence from Yale’s Voyager-based catalog, called Orbis, using log file data.

log file line
Log file line

12/2/07 20:06 20071202200646 Title Index TALL JOHN DOGGET JNR 0

log file sample descriptive data
Log file sample descriptive data

5

Most common search: title (41.8%) followed by keyword (31.4%)

Average search phrase is 2.5 words long

Most common phrase searched is united states

Most common number of hits: 0 (21.4% )

examples of title searches
Examples of title searches
  • BOOKS ON PHOTOGRAPHY?
  • ALABAMA 2004?
  • PATHOPHYSIOLOGY CHILDREN?
  • JOHNSON, JAMES?
  • INTRODUCTION TO AFRICAN AMERICAN STUDIES: A READER?

Topic

Name

Close

some conclusions from log analysis
Some conclusions from log analysis
  • Patrons commonly use field specific searches unsuccessfully
  • Majority of searches don’t use catalog metadata beyond title (decreasing)
  • Errors happen a variety of ways and

current Voyager system is not helpful in avoiding those errors

conduct usability tests
Conduct usability tests

After deciding to implement Vufind, use data from log files to help design usability tests

creating usability tests for yufind
Creating usability tests for Yufind
  • Two opportunities for tests:
    • medical implementation of subject-based ebooks display
    • alternative interface for catalog (aimed at undergraduates)
  • Objective: Would the participant see and choose facets? (more than 26% of the time)
  • Objective: Would the participant use facets successfully?
questions
Questions
  • Find books within a set by a particular author (John Adams).
  • In a set of books about healthcare, find some that are about healthcare reform.
  • Within a subject-based display of ebooks find a topic-based subset.
facets key findings
Facets: key findings
  • Were seen and sometimes used but
  • not always successfully for author and topic
    • Subsets sometimes didn’t make sense
    • Hard to navigate (not alphabetical)
  • Little use of call number facet
  • Some preferred search refinement to facets
  • Participants noted potential usefulness: format, language, and topic facets
share findings with staff
Share findings with staff

Staff need to engage with findings of usability testing and current behavior in Orbis to decide best practices and to build empathy for user experience.

review keyword searches with subject specialist librarians
Review keyword searches with subject specialist librarians
  • Times square red times square blue
  • hague conference on peace hague conference on peace 1907 second hague conference on peace 2nd hague conference on peace
  • cuban revolution cuban revolution of 1959
  • … (list of 50 to start)
set best practices for facet display
Set best practices for facet display
  • Display facets on left
  • Develop consistent terminology between different applications
  • Consistent order of display
implement changes and assess1
Implement changes and assess
  • Move facets to the left side (standard)
  • Demoted (in list order) topic facet
  • Add a sort option—will that increase successful use of facets?
  • Can we promote use of call number facets?
usability process1
Usability process
  • Assess of current behavior
  • Conduct usability protocol tests
  • Share findings with staff
  • Implement changes and assess effect
slides and findings available
Slides and findings available

http://www.library.yale.edu/libepub/usability/yulstudies.html/arl.ppt

Yale University Library Usability and Assessment Department

Kathleen Bauer

Alice Peterson-Hart

Send questions to [email protected]

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