Rule Formats for Timed Processes

Abstract Building on previous work (15,8), this paper describes two syntactic ways of defining ‘well-behaved’ operational semantics for timed processes. In both cases, the semantic rules are derived from abstract operational rules for behaviour comonads and thus ensure congruence results. The first of them, a light-weight attempt using schematic rules , is shown to be sound , i.e., to indeed induce abstract rules as introduced in [8]. Then a second format, based on a new and very general kind of abstract rules, comonadic SOS (CSOS) , is presented which uses meta rules and is also complete , i.e., it characterises all possible CSOS rules for timed processes.

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