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Abstract

I discuss the concept of Item as stated by the International Federation of Library Associations and Institutions (IFLA) in the conceptual model Functional Requirements for Bibliographic Records (FRBR) and the object-oriented version of it (FRBRoo). Using object-oriented modeling techniques I analyze the relationship of the Item with the Manifestation entity, the concept of Document, and the physical object as a Carrier of a Content. A class scheme is proposed, not only as an implementation example, but as a way of clarifying some bibliographic concepts as well.We discusses the concept of Item as stated by IFLA in the conceptual model FRBR and the object oriented version of it (FRBRoo). Using object oriented modelling techniques we analize the relationship of the Item with the Manifestation entity, the concept of Document and the physical object as a Carrier of a Content. A class scheme is proposed, not only as an implementation example, but as a way of clarify some bibliographic concepts as well.