In the era of globalization and today's technology, the development of computer technology has increased and utilized in various areas of life, both by government and private agencies, for example utilization of computer software for education. Computers are used to help librarians SMP Negeri 3 Purwokerto. Library information systems necessary for automation of library information systems are still manual, as an example of the current system, the librarians to record transactions in the general ledger and the difficulty in making the report, so that the need for information systems, computer-based libraries. The programming language used in the manufacture of library information system in SMP Negeri 3 Purwokerto is Microsoft Visual Studio 2008 and Microsoft SQL Server 2005 for data storage.
Data collection methods used are documentation, Library Studies, and interviews. As for the systems development method used is the SDLC (system development life cycle) using techniques Water Fall or waterfall. In the analysis of library and information systems are expected to improve the quality and quantity of library management systems and improve the efficiency of data processing libraries of the system running. The result in the form of data management information system, SMP Negeri 3 Purwokerto books in Navan. The result of the feasibility analysis, the system is already feasible and cost does not exceed the total benefit.
Keyword : Library, Report, Efficiency