Interface Theories for (A)synchronously Communicating Modal   I/O-Transition Systems
  Interface specifications play an important role in component-based software development. An interface theory is a formal framework supporting composition, refinement and compatibility of interface specifications. We present different interface theories which use modal I/O-transition systems as their underlying domain for interface specifications: synchronous interface theories, which employ a synchronous communication schema, as well as a novel interface theory for asynchronous communication where components communicate via FIFO-buffers. 
Sebastian S. Bauer (LMU Munich), Rolf Hennicker (LMU Munich), Stephan   Janisch (LMU Munich)
cs.SE