Specification and analysis of concurrent systems using STOCS model

The author presents a synchronous token-based communicating state (STOCS) model for specification and analysis of concurrent systems. The STOCS model attempts to combine algebraic and net-theoretic approaches for the study of concurrent systems. It shares the notion of tokens, transitions and reachability with the net theory and the notions of processes, interactions and traces with the algebraic theory of concurrent systems. It is shown that it has the same power as that of Petri nets but is more convenient for modeling and analysis. The author presents many examples of modeling by STOCS. He also presents techniques to analyze systems expressed in STOCS model for their correctness. A STOCS simulation and analysis package is implemented on Unix 4.2 BSD.<
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