FRBRizing OCLC's WorldCat

SUMMARY The identification of works according to IFLA's report on Functional Requirements for Bibliographic Records offers challenges when applied to very large collections of bibliographic records. The authors describe an algorithm that identifies sets of works and discuss the experience of applying the algorithm to OCLC's WorldCat. Analysis found four main types of works: augmented, revised, aggregate, and translated works. Each of these offers challenges for proper identification and collocation. Quite apart from algorithmic implementation, difficult conceptual problems were encountered in applying the FRBR model to aggregate works.