Using Crystal: An Expert System Shell To Create CONFER, A Guide For Cataloguers In Determining The Correct Form Of Main Entry Headings For Conference Documents Zainab A.N.authorConference documents are difficult materials to organize, especially if the cataloguer is a novice to standardized rules, such as AACR2. Crysal is an expert system shell, which has been used to experimentally build up a guide called CONFER. CONFER does not produce a catalogue entry but guides the novice cataloguer to the appropriate rule and format of main entry headings for conference proceedings. Information provided by the second edition of the AACR2 manual together with advice by a lecturer who teaches cataloguing at the Loughborough University of Technology (the expert) have been used to structure the rule frames for the guide. The procedures used to surmount restrictions imposed by Crystal are also described. All user menus and sixteen conclusion screens designed for CONFER together with the full structure of the main rules and sub-rules are included.Z Bibliography. Library Science. Information Science1991-09Library, University of MalayaJournal