for many years, academic library's application at indonesian higher education institutions operates in a "stand-alone" mode. this causes a great loss of opportunity to share libraries resources that tend to be limited in each library. university of indonesia's libraries are the miniature of such a kind. university. each library has more than one library that distributed in several faculties and several dapertements. each library has its own collections with different library's application and different policy. very often, one has to travel to each library in order to find information needed. we propose a digital library system, which has capability to integrate resources from separated library locations. we call this system as LONTAR. LONTAR is an adaptive system, which integrates mumerous resources and all libraries ' requirement differences. this system has infroved interoperability and interconnectivity among libraries in university of indonesia hence, it has inproved the resources sharing among libraries