عنوان مقاله [English]
Background: Functional Requirements for Bibliographic Records (FRBR) is a conceptual entity–relationship model developed by the International Federation of Library Associations and Institutions (IFLA) and is from a user’s perspective and based on his needs. Relation types between entities are mentioned in the FRBR pattern but the elements that link related resources and make relationships are not identified. Therefore, this study determines relationship-making elements in IRANMARC based on relationships present in the first group entities of Functional Requirements of Bibliographic Records pattern. Methods: This study is a comparative research in an analytical perspective and is conducted based on library studies. All relation types present in FRBR first group entities are extracted and translated from FRBR manual, part 5 and RDA, J addition. Then they were matched with data elements of IRANMARC through four methods of identifiers, documented access points, structured and unstructured descriptions and the results are represented in tables. Result: by matching all the data elements of IRANMARC 10 blocks with the relation types between FRBR first group entities in RDA, J addition, it was clear that 44 element in IRANMARC are match able with relation types in the level of work, 41 element in IRANMARC are match able with relation types in the level of expression, 17 elements are match able with relation types in the level of manifestation, and 10 elements are match able with relation types in the level of item. Conclusion: Our findings show that there is at least one relational field in UNIMARC format for representing various bibliographic relation types. Data elements of IRANMARC 4xx block are to a great extent matched with bibliographic relationship titles in FRBR, and present relations between related works can be represented by these relational fields.