Process Algebra with Local Communication

In process algebras like μCRL and ACP communication is defined globally. In the context of component-based architectures one wishes to define subcomponents of a system separately, including communication within that subcomponent. We define a process algebra with an operator for local communication that facilitates component-based architectures. Besides being compositional, this language is aimed to be a more practical language (with respect to closely related languages) and also allows for straightforward modelling of synchronous as well as asynchronous behaviour.