MOKKA: rebuilding its database and the lessons we learnt

Koltay Klára Dr. <>
DEENK


The Hungarian National Shared Catalogue (MOKKA) hopes for major developments in the near future. It, however, has had the opportunity to carry out some data modification and to introduce some new features while it was reinitiated on a new server provided for its purposes in the National Széchényi Library. The new database was rebuilt using a modified method for deduplication which tries to compensate for various cataloguing practices of member libraries, and modified the mechanisms if not the theory of handling multivolume records. The MOKKA database has always been a database using authority records linked with the headings and subject headings in bibliographic records, but it did not make full use of the potentials of the arrangement. Having loaded the authority records of some of the member libraries, the new database aims at improving its search potentials based on information in the authority records. The project resulted also in some insight on how the bibliographic records of some thirty libraries coexist in the database and how the way they are handled is to be modified at some points.