Critical issues for the development of distributed real-time computing systems

From among the numerous issues involved with distributed real-time computing systems, those which are viewed as being central to designing such systems are presented. On the basis of definitions of the terms ´distributed´ and ´real-time,´ the author concentrates on concepts, problems, and corresponding solutions that are directly related to the achievement of distributive and timeliness properties. Distributed real-time computing is gaining increased interest in scientific circles, as well as in the business-oriented community. In order to help potential users get a clearer picture of what is currently known and achievable and what is currently marketed as distributed real-time operating systems, most common misconceptions and shortcomings are also reviewed