Malik, R. & Flordal, H.(2008). Yet another approach to compositional synthesis of discrete event systems. In B. Lennartson, M. Fabian, K. Åkesson, A. Giua, R. Kumar (Eds), Proceedings of 9th International Workshop on Discrete Event Systems (WODES'08). IEEE, Göteborg, Sweden, 28-30 May, 2008(pp.16-21). Washington, DC, USA: IEEE.
Permanent Research Commons link: https://hdl.handle.net/10289/1990
A two-pass algorithm for compositional synthesis of modular supervisors for large-scale systems of composed finite-state automata is proposed. The first pass provides an efficient method to determine whether a supervisory control problem has a solution, without explicitly constructing the synchronous composition of all components. If a solution exists, the second pass yields an over-approximation of the least restrictive solution which, if nonblocking, is a modular representation of the least restrictive supervisor. Using a new type of equivalence of nondeterministic processes, called synthesis equivalence, a wide range of abstractions can be employed to mitigate state-space explosion throughout the algorithm.
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