The process algebra Communicating Sequential Processes (CSP) offers a way of taming the complexity of concurrent systems by focusing on the interaction behavior of systems and abstracting from synchronization mechanisms and other implementation details. However, the derivation of a systems implementation from its CSP-based model is still a problem and subject to ongoing research. It is, for example, not obvious how to integrate CSP with internal actions of a system, because CSP abstracts from internal actions to a great extent. As a solution, this book presents the use of CSP as a formal...