Taming the Octopus: using formal models to integrate the Octopus object oriented analysis models

The object-oriented (OO) modeling techniques of the Octopus method provide good tools for managing the complexity which is inherent in reactive embedded systems. The lack of a precise semantics for the modeling notations used diminishes the role it can play in the development of critical reactive systems. In this paper, we describe an extension to the Octopus analysis techniques that provides support for precise specification and rigorous analysis. We use the formal notation Z to formally describe the concepts captured by Octopus analysis models.