Database Holdings Overlap Analysis with Serials Solutions

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Database Holdings Overlap Analysis with Serials
Solutions

• Nina McHale, Auraria Library
• Surfing Beyond Surf Engines
• September 27, 2007

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A Real-World Example

• EBSCO has a database called Education
• Research Complete, which is high on my list of
  databases to consider adding this year. Id like
  to know how much overlap there is between
  Academic Search Complete and Education Research
  Complete. If most of the Education Research
  Complete materials are in Academic Search
  Complete, and if we decide to subscribe to it,
  Id be able to take Education Research Complete
  off of my wish list.

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Serials Solutions Client Center
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Select Databases to Compare
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Adding Potential Titles to Compare
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Adding Potential Titles to Compare
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Adding Potential Titles to Compare
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Deselect All Others
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Run Analysis
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Analysis Results and Interpretation
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Title Unique
Title Unique Journals available in only one of
your databases
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Holding Unique
Holding Unique Journals available in more than
one database, but without overlapping coverage
dates
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Total Unique
Total Unique The sum of Title Unique and
Holding Unique holdings
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Full Holding Overlap
Full Holding Overlap Journals available in more
than one database. The coverage dates of the
reference holdings are completely overlapped by
at least one comparison holding.
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Partial Holding Overlap
Partial Holding Overlap Journals available in
more than one database. The coverage dates of
the reference holdings are only partly
overlapped by at least one comparison holding.
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Total Holding Overlap
Total Holding Overlap The sum of Full Overlap
and Partial Overlap holdings
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Title Overlap
Title Overlap Journals with overlap, but
lacking enough information to define the overlap
as full or partial
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Total
Total The sum of Total Unique and Total
Overlap holdings.
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Percent Full Overlap
Percent Full Overlap Percentage of all holdings
in a database that are completely overlapped by
at least one other holding from another
database.
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Percent Unique
Percent Unique Percentage of all holdings in a
database that are either title unique or holding
unique.
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Conclusion

• If most of the Education Research Complete is in
  Academic Search Complete, and if we decide to
  subscribe to Academic Search Complete, Id be
  able to take Education Research Complete off of
  my wish list.
• Based on this data from Serials Solutions, what
  would you decide to do?