ISYDES: the project of a tool aimed at information system development

Illustrates the main functionalities and development methodologies of the ISYDES (Information SYstem DEsign Support) system, which is a CASE tool for information system (IS) design and development. Such a tool is mainly composed of two software tools: the first allows the definition of the static structure of data, whereas the second allows the complete specification of all the functions which constitute the dynamic part of an IS. This second step is very important in the design phase of an IS, as all the IS operations and processes are based on the specification of such functions. The proposed ISYDES tool adopts an object-oriented approach to the IS conceptual design; in particular, it provides a way to specify the information processes that can be easily translated into the actual IS-coded procedures.