The design of an information system for recording appeals received by the election commission is presented. The second stage of the life cycle for information system creation – the design stage is presented. The design was carried out through the use of modern CASE-technologies within the framework of a structural approach using the BPwin modeling tool. A model of the projected information system has been developed. It is constructed using two types of diagrams, tiedly connected each other. They are both the IDEF0 and DFD methodologies. IDEF0 diagrams contain a context diagram and decomposition ones of the first and second levels. The presented series of diagrams describe all the necessary processes sufficient for the activity modeling of the projected information system. A data flow diagrams (DFD) are constructed using the DFD methodology. It shows all data flows used during the execution of processes, including external entities outside the system and data stores inside it. If to supply the presented model with ERD diagrams, as a model of database, one can begin to program and realize an information system.

Keywords: information system, structural approach, methodology, CASE-tool, BPwin, IDEF0, the TO-BE model, decomposition, data flow diagram, data storage