TRLN OCLC Collections Analysis Task Force

1
TRLN OCLC Collections Analysis Task Force

• July 28, 2006
• Presented by Aisha Harvey on behalf of the TRLN
  OCLC-WCA Task Group

2
2006 Task Group Members

• Diane Strauss, UNC-Chapel Hill, Chair
• Gouri Dutta, NCCU
• Aisha Harvey, Duke
• Darby Orcutt, NCSU
• Judy Ruttenberg, TRLN
• Luke Swindler, UNC-Chapel Hill
• Meg Trauner, Duke
• Phil Vandermeer, UNC-Chapel Hill
• Suzanne Weiner, NCSU

3
1992 TRLN Database Overlap Study2,311,311
distinct OCLC records used
UNIQUE RECORDS
Duke 28 640,768
NCSU 14 314,511
UNC-CH 34 794,961
TOTAL 76 1,750,240
4
Then Now

• 1992
• 2,311,311 records
• Many library titles were not in OCLC
• TRLN Duke, NCSU UNC

• 2006
• 5,158,309 records
• 90 retrospective conversion
• TRLN Duke, NCCU, NCSU UNC

5
Limitations of OCLC-WCA

• Government Documents
• Serial Holdings
• Multiple formats

6
Limitations Continued

• Special Collections
• Complex Subjects
• TRLN Aggregate Gap Analysis

7
2006 TRLN Uniqueness Overlap
8
TRLN Database Overlap Study 2006
9
NCSU Selected Subject Strengths
10
Duke Selected Subject Strengths
11
UNC Selected Subject Strengths
12
NCCU Selected Subject Strength
13
Evidence of Cooperation
14
Thank You7/28/2006

• TRLN Collection Development Cooperation
  Agreements
• (1933-1996)
• http//www.trln.org/history/trln_colldev.htm
• List compiled by Pat Dominquez Luke Swindler