1.        As the concept of OPAC is becoming a virtual, integrated catalogue, it has to serve remote and local databases on a common, unified interface hiding the structural differences of the source databases.

2.        Transformation of the interface of the OPACs to the style of the information portals, intelligent navigation, extension of the opportunities of pre-selection.

3.        To supply conflicting demands (e.g. different display of relevant information for users searching documents or bibliographical data).

4.        The OPAC has to be prepared to serve non-traditional documents: manuscripts, postcards, microfilms, films, etc. Idea of "record map".

5.        To supply needs of circulation through OPAC. Plans, ideas.