Syntax and semantics of the compositional interchange format for hybrid systems

Abstract

Different modeling formalisms for timed and hybrid systems exist, each of which addresses a specific set of problems, and has its own set of features. These formalisms and tools can be used in each stage of the embedded systems development, to verify and validate various requirements.The Compositional Interchange Format (CIF), is a formalism based on hybrid automata, which are composed using process algebraic operators. CIF aims to establish interoperability among a wide range of formalisms and tools by means of model transformations and cosimulation, which avoids the need for implementing many bilateral translators.This work presents the syntax and formal semantics of CIF. The semantics is shown to be compositional, and proven to preserve certain algebraic properties, which express our intuition about the behavior of the language operators. In addition we show how CIF operators can be combined to implement widely used constructs present in other timed and hybrid formalisms, and we illustrate the applicability of the formalism by developing several examples.Based on the formal specification of CIF, an Eclipse based simulation environment has been developed. We expect this work to serve as the basis for the formal definition of semantic preserving transformations between various languages for the specification of timed and hybrid systems.

Model-based design of supervisory controllers for baggage handling systems

“…Nowadays, CIF has evolved to a stand-alone model-based design framework that supports the design of supervisory controller from specification to acceptance [35] . CIF models are specified textually in the formalism of hybrid automata [36] . This syntax is parsed on-the-fly and errors in the specification are directly reported to the end-user by means of different visual cues.…”

Integration of Supervisory Control Synthesis in Model-Based Systems Engineering

“…The toolset described in [1] was used for discrete-event simulation. Currently, a new version of the toolset supporting MBSE and synthesis is being developed based on CIF [21,33].…”