Component composition preserving behavioral contracts based on communication traces

This paper investigates the compositional properties of reusable software components defined with explicit dependencies and behavioural contracts expressing rely-guarantee specifications in the form of communication traces. In this setting, connection of components through their matching ports is indeed compositional and yields a new component or composite that respects its constituents’ contracts. Thus the behaviour of the composite is computed from the behaviours of its constituents and is known to conform to the contracts without any new proof.