Flow sketch methodology: A practical requirements definition technique based on data flow concept

This paper discusses a new simple methodology for defining software system requirements. We have developed a practical approach which we call FS (Flow Sketch) methodology. This methodology, based on the data flow concept, has been developed to provide the precise means of user´s requirements. Actually, the user´s requirements are presented in data form by particular format cards. Data are classified and the relationships between data are decided through brainstorming. Then, a requirement definition model is defined. FS methodology employs diagrammatic notation. This notation is suitable for the visual and the interactive description of the dynamic system data flow. As a result, misunderstandings of the software system between the software producer and software user will decrease.