In order to be able to evaluate beforehand the impact of a strategical or tactical move, decision makers need reliable previsional systems. What-if analysis satisfies this need by ...
Class diagrams must be complemented with a set of system operations that describes how users can modify and evolve the system state. To be useful, such a set must be complete (i.e....
Descriptions of reactive systems focus heavily on behavioral aspects, often in terms of scenarios. To cope with the increasing complexity of services provided by these systems, beh...
The design of complex systems requires powerful mechanisms for modeling state, concurrent events, and real-time behavior; as well as for visualising and structuring systems in ord...
The notion of aspect is important as a systematic approach to the representation of cross-cutting concerns and the incremental additions of new functionalities to an existing syst...