Abstract
We survey three applications that use finite automata to specify behaviors of concurrent processes in general, and asynchronous circuits in particular. The applications are: verification of concurrent processes, liveness properties, and delay-insensitivity of asynchronous networks. In all three cases, we start with a common model of a nondeterministic finite automaton, and then add certain application-specific features. Typically, the added features involve separating the alphabet or the state set of the automaton into several disjoint subsets. For each application we provide the motivation, describe the type of automaton used, define the most important operations, and state some of the key results. For process verification, we describe a BDD-based tool that implements the respective automata and operations.
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