On the design of communication systems by ECCS and CSP based approaches

The authors deal with two important behavioral techniques: communicating sequential processes (CSP) and the calculus for communicating systems (CCS). The authors introduce the syntax and meaning of CSP constructs and discuss CSP specifications and proofs. By way of illustration, the authors present the CSP specification of a transport protocol and its verification. The syntax and semantics of ECCS (extended CCS) and a technique for performing proofs about ECCS specifications are given. The ECCS specification and verification of a bus controller are also presented