Abstract: The availability and convenience of OPAC are cherished by many libraries and users.With the change of user＇s requirement and technology development,the functions of OPAC are more and more perfect.Taking Dongguan library as an example,this paper gives introductions of characteristics of both Interlib OPAC of Dongguan library and DUXIU academic search,and comparatively analyses their similarity and difference,with the purpose of providing reference for the improvement of library OPAC functions.

Key words: OPAC;Online Public Access Catalog;library;DUXIU academic search