'''Functional Requirements for Bibliographic Description''' or '''FRBR''' is a conceptual Entity-relationship_model developed by the International_Federation_of_Library_Associations_and_Institutions (IFLA) that relates user tasks of retrieval and access in online library catalogues and bibliographic databases from a user’s perspective. It represents a more holistic approach to retrieval and access as the relationships between the entities provide links to navigate through the hierarchy of relationships. The model is significant because it is separate from specific cataloguing standards such as AACR2 or International_Standard_Bibliographic_Description (ISBD). ==FRBR Entities== FRBR is comprised of groups of entities: *Group 1 entities are Work, Expression, Manifestation, and Item, and represent the products of intellectual or artistic endeavour. *Group 2 entities are person and corporate body, responsible for the custodianship of Group 1’s intellectual or artistic endeavour. *Group 3 entities are subjects of Group 1 or Group 2’s intellectual endeavour, and include concepts, objects, events, places. Group 1 entities are the foundation of the FRBR model: *Work is a “distinct intellectual or artistic creation.” (IFLA 1998) *Expression is “the specific intellectual or artistic form that a work takes each time it is ‘realized.’” (IFLA 1998) *Manifestation is “the physical embodiment of an expression of a work. As an entity, manifestation represents all the physical objects that bear the same characteristics, in respect to both intellectual content and physical form.” (IFLA 1998) *Item is “a single exemplar of a manifestation. The entity defined as item is a concrete entity.” (IFLA 1998) ==Relationships== FRBR is built upon relationships between and among entities. “Relationships serve as the vehicle for depicting the link between one entity and another, and thus as the means of assisting the user to ‘navigate’ the universe that is represented in a bibliography, catalogue, or bibliographic database.” (IFLA 1998) ==References== IFLA Study Group on the Functional Requirements for Bibliographic Records. Functional requirements for bibliographic records: final report Functional requirements for bibliographic records: final report. München: K. G. Saur, 1998. (UBCIM Publications. New Series; 19). ISBN 3-598-11382-X. (Accessed Nov. 6, 2005) Tillett, Barbara. FRBR: A Conceptual Model for the Bibliographic Universe. Library of Congress Cataloging Distribution Service, 2004. (Accessed Nov. 6, 2005) ==External links== * IFLA Functional Requirements For Bibliographic Records (FRBR) Review Group * RDA: Resources Description and Access * RedLightGreen: a FRBR-inspired discovery tool from RLG * The FRBR Blog: A weblog following developments around the world in FRBR Category:Library_and_information_science Category:Library_2.0 De:Functional_Requirements_for_Bibliographic_Records Fr:FRBR