Using Coordinated Atomic Actions to Design Dependable Distributed Object Systems

摘要

Co-ordinated Atomic actions (CA actions) provide a scheme for coordinating211u001ecomplex concurrent activities and supporting error recovery between multiple 211u001einteracting objects in a distributed object-oriented system. In this paper the 211u001eauthors show how CA actions can be applied to two different areas: safety-211u001ecritical systems and fault-tolerant parallel systems. The authors have used a 211u001eProduction Cell case study to show how they can use CA actions to control a 211u001esafety-critical system, where safety requirements play a fundamental role, and 211u001ethe authors have used an example based on the GAMMA paradigm to demonstrate how 211u001eCA actions can be used to add fault tolerance to a parallel computation model. 211u001eThe authors discuss how CA actions provide these systems with dependability 211u001efeatures, and describe their Java framework for constructing CA actions.