The conspectus' 24 subject divisions are subdivided by approximately 500 subject categories, which are further subdivided by approximately 4,000 descriptors. Each subject division, category and descriptor is directly related to a range of classification numbers. If they choose, library staff can use their library's records in OCLC's WorldCat to perform the analysis. The analysis can find out how old the library collection is and how many titles are held in particular subject areas. If a group database is being used, the library staff can compare a library's collection against the group's holdings.
Results are available in graphic representations as well as tabular form.
For the title overlap, the group is provided with a statistical summary and lists of unique and jointly held titles. The key to this analysis is the title deduplication process, which is modified as needed depending on the characteristics of the libraries' data. At this time the reports are available in printed form. Comparisons can be scoped by date and classification number. If you are interested in any of these services for your library, contact BCR's Rosario Garza .