Probabilistic contracts for component-based design

Abstract : We define a framework of probabilistic contracts for constructing component-based embedded systems, based on the formalism of discrete-time Interactive Markov Chains. A contract specifies the assumptions a component makes on its context and the guarantees it provides. Probabilistic transitions represent allowed uncertainty in the component behavior, for instance, to model internal choice or reliability. Action transitions are used to model non-deterministic behavior and communication between components. An interaction model specifies how components interact with each other. We provide the ingredients for a component-based design flow, including (1) contract satisfaction and refinement, (2) parallel composition of contracts over disjoint, interacting components, and (3) conjunction of contracts describing different requirements over the same component. Compositional design is enabled by congruence of refinement.
Type de document :
Article dans une revue
Formal Methods in System Design, Springer Verlag, 2012, 41 (2), pp.211-231. <10.1007/s10703-012-0162-4>
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Contributeur : Gregor Gössler <>
Soumis le : mercredi 31 octobre 2012 - 17:05:37
Dernière modification le : vendredi 23 novembre 2012 - 12:07:26




Gregor Goessler, Dana Xu, Alain Girault. Probabilistic contracts for component-based design. Formal Methods in System Design, Springer Verlag, 2012, 41 (2), pp.211-231. <10.1007/s10703-012-0162-4>. <hal-00747620>



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