A CASE for electronic documentary dossier

This paper proposes a graphical UI, a CASE tool, for the purpose of specifying and representing trade information, common in electronic commerce. The semantic and structural information associated with trade instances can be extremely complex. Far example, the formal property of Petri nets can be used to represent the different traders´ roles or to identify the various trade procedures that will lead to deadlock situations. A simple and intuitive graphical user interface that can represent and characterize the organization of the trade documents is therefore considered useful in facilitating electronic commerce