We review the techniques classically used for real-time … 1. Connecting classical programs by making them communicate … [Such systems are] a set of … loosely connected programs … [connected by a somewhat nondeterministic operating system.] … [p. 1274] 2. Using finite-states machine … [see separate quote] … 3. Using Petri Nets … They do not scale up well to big … [see separate quote].
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