We present a formal model for concurrent systems. The model represents synchronous and
asynchronous components in a uniform framework that supports compositional (assume …

The term" reactive system" was introduced by David Harel and Amir Pnueli [HP85], and is
now commonly accepted to designate permanently operating systems, and to distinguish …

We present a method for specification and verification of distributed systems that
communicate via asynchronous message passing. The method handles both safety and …

We show how to exploit symmetry in model checking for concurrent systems containing
many identical or isomorphic components. We focus in particular on those composed of …

This paper describes a component-based concurrent model of computation for reactive
systems. The components in this model, featuring ports and hierarchy, are called reactors …

Given two descriptions of a real-time system at different levels of abstraction, we consider
the problem of proving that the refined representation is a correct implementation of the …

Synchronous systems offer a clean semantics and an easy verification path at the expense
of often inefficient implementations. Capturing design specifications as synchronous models …

A model and a sound and complete proof system for networks of processes in which
component processes communicate exclusively through messages is given. The model, an …

Over the past few years, I have developed an approach to the formal specification of
concurrent systems that I now call the transition axiom method. The basic formalism has …

We show how to specify components of concurrent systems. The specification of a system is
the conjunction of its components' specifications. Properties of the system are proved by …