Capturing interactions in architectural patterns

Patterns of software architecture help in describing structural and functional properties of a system in terms of smaller components. The emphasis of this work is on capturing the aspects of pattern descriptions and the properties of inter-component interactions including non-deterministic behavior. Through these descriptions we, capture structural and behavioral specifications as well as properties against which the specifications are verified. The patterns covered in this paper are variants of Proxy, Chain, MVC, Acceptor-Connector, Publisher-Subscriber and Dinning Philosopher patterns. While the machines are CCS-based, the properties have been described in modal ¿-calculus. The approach serves as a framework for precise architectural descriptions.