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OCLC Support

Manage Comparisons

Manage Comparisons allows you to create, search, edit, and export comparisons for your institution. Use comparisons to view your institution's WorldCat holdings against the holdings of other institutions.
  • Authoritative list comparisons
    Discover how to create an authoritative list comparison in WorldShare Collection Evaluation.
  • Hathi comparisons
    Discover how to create a Hathi comparison in WorldShare Collection Evaluation.
  • List of blanket permission libraries
    Find an A-Z list of all libraries with blanket permissions in WorldShare Collection Evaluation.
  • Peer comparisons
    Discover how to create a one-to-one or one-to-many comparison and how to obtain permission to run a peer-to-peer comparison in WorldShare Collection Evaluation.
  • Predefined group comparisons
    Discover how to create a predefined group comparison in WorldShare Collection Evaluation.
  • Work with comparisons
    Discover how to extend, reactivate, remove, and deactivate a comparison in WorldShare Collection Evaluation.
  • WorldCat comparisons
    Discover how to create a WorldCat comparison in WorldShare Collection Evaluation.