Provably Correct Architecture Refinement

This paper presents a formal approach to correctly generate an architecture level model of a system from its specification model. We define the notion of equivalence of models based on their execution semantics. A formalism is then presented, which can be used to model systems and perform correct transformations on them. Architecture refinement is described, as a sequence of such transformations on the specification model, that results in an equivalent architecture model. This method of deriving one model from another through well defined rules can alleviate the problem of validating every model at different abstraction levels in system design.