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    A Refinement Calculus for Communicating Processes with State

    1st Irish Workshop on Formal Methods

    Dublin, Ireland. 3rd - 4th July 1997

    AUTHORS

    L. Lai & J.W. Sanders

    ABSTRACT

    A uniform treatment is presented of specifications, programs, and programming for communicating processes with machine state.

    The treatment is based on addition of a specification statement to a CSP-like language. The extended language is viewed as a specification language in which programs are identified with a subclass of specifications.

    A semantics is provided and here a selection of sound refinement laws is given to support the development of programs from specifications.

    The result is a homogeneous framework for the specification and development of parallel programs which, as usual, guarantees functional correctness of an implementation as a consequence of development using its laws. An example is given to demonstrate use of the method.

    PAPER FORMATS

    PDF filePDF Version of this Paper (172kb)