REQUIREMENTS DETERMINATION USING THE CUBE TOOL METHODOLOGY AND PETRI NETS

The geographical dispersion of distributed intelligent systems require s the consideration of communications as well as processes in the dete rmination of requirements. The Cube Tool is a methodology for deriving the processing and communication needs for the individual functions t hat support a mission. An approach is introduced for deriving executab le models from the Cube Tool results in the form or a Petri Net repres enting each function. Then, for a given scenario, these nets are inter connected and the steps of the methodology are applied again to derive the Petri Net that represents the mission-dependent requirements for the system.