The Delta-4 Approach to Dependability in Open Distributed Computing Systems

D. Powell, G. Bonn, D. Seaton, P. Veríssimo and F. Waeselynck



As part of the European Strategic Programme for Research and Information Technology (ESPRIT), the Delta-4 project is seeking to define an open, fault-tolerant, distributed computing architecture. This paper presents the overall Delta-4 framework for open, fault-tolerant, distributed computing systems and sketches the current implementation, which is based on a local area network with specific atomic multicasting and error-processing protocols for communicating between replicated software components.