This study discusses the audit of information systems in the field of Cooperative Sejahtera Bersama Purwokerto and aims to determine the condition of the system using a maturity model information on COBIT 4.1 framework. this study is that not only provide audit system evaluation Sejahtera Bersama Cooperative Purwokerto information at this time but can make recommendations based on the findings - findings that there was thus obtained the condition of good information systems in the future. This study focuses on the domain of the DS (delivery and support) consisting of 13 IT process and 78 control objectives. The data collection is done with interviews, literature studies, literature, and questionnaires. The findings - findings obtained from the processing of data will be compared to established standards COBIT 4.1 to determine the level of maturity at the moment. Results from the study showed Sejahtera Bersama Cooperative Purwokerto has been optimizing the use of information systems to support business processes establishments. The whole IT process have been implemented with the development of a computerized system was good, but the evaluation process has not been carried out thoroughly, so that there is the possibility of deviation can be and still lack of support from management in documenting and communicating throughout the process of information systems. Furthermore, the system condition information obtained at level 3 (defined process) with a gap of information system conditions expected at level 4 (managed and measurable) at 1.10.
Keyword : Keyword : System Information, COBIT 4.1, maturity level, Koperasi Sejahtera Bersama Purwokerto.