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Mapping a Dental Library Collection Using OCLC's Worldcat ...
 

Mapping a Dental Library Collection Using OCLC's Worldcat ...

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    Mapping a Dental Library Collection Using OCLC's Worldcat ... Mapping a Dental Library Collection Using OCLC's Worldcat ... Presentation Transcript

    • Mapping a Dental Library Collection Using OCLC’s Worldcat Analysis Service Presented by: Jan Cox, Head Librarian Barbara Gushrowski, Access & Instructional Services Librarian Ohio Valley Group of Technical Services Librarians Annual Conference Bowling Green, Kentucky May 17, 2007
    • Background: Indiana University School of Dentistry
      • Established 1879
      • Only Dental School in Indiana
      • Degrees/Programs: DDS, Dental Hygiene, Dental Assisting
      • Graduate Degrees: Endodontics, Orthodontics, Pediatric Dentistry, Periodontics, Prosthodontics
    • Background: Indiana University School of Dentistry (cont.)
      • Problem Based Learning Curriculum (PBL) Introduced 1997
      • Faculty: 107 Full time
      • 113 Part time
      • 100 Adjunct/Volunteer instructors
      • Students: 655
    • Background: Indiana University School of Dentistry Library
      • Established: Faculty Library 1881
      • “ Library” contains 900 volumes 1920
      • First Librarian hired 1927
      • Volumes: 58,569 as of 6/30/06 (monographs & serials)
      • Monographs: 26,465 as of 6/30/07
      • Staff: 5.79 FTE
    • OCLC WorldCat Collection Analysis (WCA) Service
      • April 2005 – OCLC announces WCA service
      • Designed as cost effective, “real-time” collection evaluation tool
      • Analysis Options: Age, Subject, Title
      • overlap, Title uniqueness, Peer Library
      • “ Libraries can analyze their entire collection as a single entity, regardless of classification schemes used in their catalog, and libraries can compare their collection with that of other libraries regardless of the classification scheme used.” -- Source: Advanced Technology Libraries
    • Collection Analysis Opportunity
      • CIC/OCLC WCA Agreement – December 2005
      • 54 participating libraries
      • Peer libraries: 4 with DDS degree programs
      • 125 year old collection
      • Snapshots – book holdings, peer library comparisons
    • Rationale For Participation
      • Administrative Communication
      • Grant Application Support
      • Accreditation Self-Study Support
      • Collection Development Planning
    • Rationale For Participation (cont.)
      • Cooperative Collection Development Opportunities
      • Deep Analysis of Subject Areas
      • Fiscal Accountability
      • Budget Request Justification
    • Challenges/Limits
      • Access to group libraries only
      • University of Michigan did not participate
      • Large amount of data
      • Unable to download directly into Excel – must convert
    • Challenges/Limits (cont.)
      • “ No Call # Present” (aka Unknown)– Carry over from iCAS product not yet resolved
      • Comparison designed for LC/Dewey
      • Lack of NLM/MeSH sort
      • Rapidity with which data becomes out-of-date
    • Subcription Options
      • Consortial purchase
        • Less expensive
        • Can compare with any library in the consortia
        • Can create your own groups within the consortia
      • Stand alone purchase
        • More expensive
        • Able to select peer institutions from all OCLC users
        • OCLC sets up the groups
    • Advantages to WCA
      • If you are experienced with Excel the database is extremely easy to use
      • Lots of rich data to massage
      • Ability to measure collection strengths/ adequacy
      • Age analysis – Identification for updating/ weeding
    • Advantages of WCA (cont.)
      • Check the duplication rate with peer libraries
      • Identify duplication rate w/in core subjects
      • Identify duplication rate w/in non-core subjects
      • Identify time periods where duplication is highest/lowest
    • Getting Started. . .
      • Choose the type of analysis
        • a. Publication date (age)
        • b. Overlap (how many titles you share)
        • c. Uniqueness (how many titles you don’t share)
      • Choose how to display data
      • a. Number only
      • b. Percentage only
      • c. Number and percent
    • Age Data Displayed as Number Only
    • Age Data Displayed as Percentage Only
    • Age Data Displayed as Number & Percent
    • Getting Started (cont.)
      • Choose your limits
      • a. Library ( for us one or more CIC libraries )
      • b. Division ( by LC classification )
      • c. Publication Date ( date ranges – MARC 008; 260 $c )
      • d . Language (54 languages available – MARC 008)
      • e. Format (28 different ones – Maps, books etc)
      • f. Audience (adult – juvenile; MARC 008)
    • Limits Available
    • Limits cont.
    • Additional Analysis – Overlap
    • Additional Analysis - Uniqueness
    • Recognize Some of the Problems
      • Instant graph capabilities
        • Data not normalized
        • Comparing apples to oranges (or decades to single years)
    • Instant Graphs . . . .
    • Isn’t This Great!?!? (Until you look a little closer)
    • Overcoming the Graph Problem
      • Manipulation required to normalize
        • Need to download all the OCLC records
        • Sort by date
        • Add fields to the spreadsheet
    • Normalizing the Data
    • Transfer the Numbers to the Spreadsheet
    • Now This Looks a Lot Better!
    • Problems for Medical Libraries
      • WCA maps individual records based on call number
        • First looks for LC number - 050
        • Then a locally-defined LC call number - 090
        • Then the Dewey number – 082
        • Then a locally-defined Dewey number - 092
        • Then FINALLY NLM number – 060
        • Or locally defined NLM – 096
    • LC vs NLM – It’s a Problem . . . .
    • Conclusions
      • It’s a good product
      • Good customer service support
      • Know what you want to accomplish with WCA
      • Know it’s limitations
      • Ease on down the road!
    • References
      • Lyons, L. E. A Critical Examination of the Assessment Analysis Capabilities of OCLC ACAS. Journal of Academic Librarianship v. 31 no. 6 (Nov. 2005) p. 506-516.
      • OCLC Launches Worldcat Collection Analysis Service. Advanced Technology Libraries v. 34 no. 4 (April 2005) p 1, 10-11.
      • Spires, T. Using OCLC’s Worldcat Collection Analysis to Evaluate Peer Institutions. Illinois Libraries (Online) v. 86 no. 2 (Summer 2006) p. 11-19.
    • Contact Information
      • Jan Cox, Head Librarian, [email_address]
      • Barbara A. Gushrowski, Access & Instructional Services Librarian, bgushrow@iupui.edu