With the perspective of information management, on-going monitoring of the specified service function is one of the major activities and even critical process. The research consisted of three empirical research questions such as, the current usage and overall user-satisfaction, the quality of the R&D information content and the service, and the problems which have been observed by the actual user group of National Digital Science Library (NDSL). The results of the investigation provided several guidelines that can be utilized for the improvements of the R&D information user service as well as some recommendations for overall optimal administration.