Object-Oriented Specification of Hybrid Systems Using UMLh and ZimOO

In this paper, we present an object-oriented approach to the specification of hybrid systems using a combination of a graphical design notation and a formal specification language. In particular, we use UML h , a variant of UML for hybrid systems, to graphically describe the objects and associations of hybrid system models, and we use ZimOO, a variant of Object-Z for hybrid systems, for the precise and complete specification of hybrid systems. We introduce the main concepts of UML h and ZimOO, describe a support tool, and look at their application for the design of a steam-boiler system.

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