Proceedings Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2000) (Cat. No. PR00607) (2000)
Newport Beach, California
Mar. 15, 2000 to Mar. 17, 2000
Radu Grosu , Technische Universit?t M?nchen
Ingolf Krüger , Technische Universit?t M?nchen
Thomas Stauner , Technische Universit?t M?nchen
We introduce Hybrid Sequence Charts (HySCs) as a visual description technique for communication in hybrid system models. To that end, we adapt a subset of the well-known MSC syntax to the application domain of hybrid systems. The semantics of HySCs is different from standard MSC semantics. Most notably, we use a shared variables communication model and assume the existence of a continuous, global clock. Similar to their classic counterpart HySCs can be advantageously used in the early phases of the software development process. In particular, in the requirements capture phase, they improve the dialog between customers and application experts. They complement existing formalisms like hybrid automata by focusing on the interaction between the system's components. We outline the key concepts and the usage of HySCs along an example, the specification of an electronic height control system. Then we define the formal semantics of their basic elements.
sequence charts, hybrid systems, specification, formal methods, requirements engineering
I. Krüger, T. Stauner and R. Grosu, "Hybrid Sequence Charts," Proceedings Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2000) (Cat. No. PR00607)(ISORC), Newport Beach, California, 2000, pp. 104.