Synchronized Parallel Composition of Event Systems in B

  • Authors:
  • Françoise Bellegarde;Jacques Julliand;Olga Kouchnarenko

  • Affiliations:
  • -;-;-

  • Venue:
  • ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
  • Year:
  • 2002

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Abstract

A large system typically is or can be decomposed as a composition of components. Usually, these components have to cooperate so, their composition is a synchronized parallel composition. Components are often reactive systems. In the B method, each component is an event system. Then, two development paradigms - refinement and component composition - can be used. To provide both paradigms we have a compositionality result of a synchronized parallel composition with respect to refinement. We make use of this result to get an efficient approach to verify the refinement of a synchronized parallel composition between components. Therefore, our proposal allows introducing a second development paradigm in B, the component paradigm.