The goal of this research is investigating the situation of existing bibliographic records in the online public access catalog of the National Library of Iran in order to use Resource Description and Access (RDA). A sample of 111 bibliographic records was selected for this purpose. These records were analyzed according to the RDA codes. The results reveal that more than 88% of the records show a rather good conformity with RDA, but 47% of the remaining problematic records show direct inconformity with RDA. Based on an in-depth analysis of the fields, most of the discrepancies deal with the assumed rules based on which the data is entered. The results of this study indicate that there is a good level of conformity between contents of current records and RDA, but as for the rest of the records there are some major tasks to be done.

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