Study of Mapping Iran Machine Readable Cataloging (Iran MARC) Data Elements to Functional Requirements for Bibliographic Records (FRBR) Entities and Attributes

The main goal of this research is to determine mapping of Iran MARC data elements to Functional Requirement for Bibliographic Records (FRBR) model group one entities and attributes. FRBR group one entities are work، expression، manifestation and item and each one has special attributes. Therefore all fields and data elements of Iran MARC were examined via comparative method to the entities and attributes of the first group. In first segment a table was made and all of the data elements were mapped based on similar research conducted on MARC 21 by U. S Congress Library. Research findings showed that from the total of 1558 data elements that exist in Iran MARC، 531 data elements are manifestation، 73 data elements are Work y، 65 data elements are expression and 33 data elements are Item. Totally 702 data elements in Iran MARC (45. 05%) have adaption capability. Among attributes of every entity، the Form of work for Work entity، language of Expression attribute for expression، Manifestation identifier attribute for Manifestation and Item identifier for item entity have the major frequency in Iran MARC structure and totally 692 data elements (44. 41%) adopted this pattern.