A new specification methodology for embedded systems based on the /spl pi/-calculus process algebra

This paper presents a formal specification methodology for embedded systems which is founded upon the /spl pi/-calculus process algebra. The domain model underlying this newly developed methodology identifies eight categories of system building blocks each of which describes a particular system facet. Based on these building blocks complex embedded systems can be specified, refined, and formally verified. The theories underlying both system specification and refinement are explained and exemplified by applications from the field of aeronautics.