The development of Information Systems (I.S) is of great importance for
researchers and industrial users. Different methods for (I.S) design have been
proposed until now. Some of them put emphasis on the statical aspect, and
others on the dynamica
l aspect. A third category of methods has recently
appeared, which try to take into account both aspects, and therefore provide
unified view of data and treatments. Also there exist approaches that put the
stress on rigour in the specification and validation process.
This paper presents a tool (CASE) which constitute a conceptual help to
Information Systems design: that tries, on one hand, to handle the statical and
dynamical, aspects while providing at the same time, the user with products
that are readable and easy to understand and on the other hand, to validate the
specification obtained in a rigorous way. In fact, it is an attempt to satisfy both
the designer and the user.
