Objective The CONCORDIA project aimed to provide an environment which integrated a set of hardware and software mechanisms and components in order to facilitate the construction and support the operation of reliable distributed application systems based on local area networks. The architecture was intended to provide a programming model integrating the communication needs of distributed software with the various mechanisms required for fault tolerance. The model was to allow the construction of fault-tolerant systems based on the concept of active stand-by, with software redundancy supported by hardware redundancy in the network. The project aimed to provide an environment which integrated a set of hardware and software mechanisms and components in order to facilitate the construction of and support the operation of reliable distributed application systems based on local area networks. The architecture was intended to provide a programming model integrating the communication needs of distributed software with the various mechanisms required for fault tolerance. The model was to allow the construction of fault tolerant systems based on the concept of active stand by, with software redundancy supported by hardware redundancy in the network. The project completed system architecture and demonstration task specifications. The environment provides a computational model in which objects communicate by means of remote operations calls. Objects are replicated at different nodes of the system for backup in the event of a node failure. Checkpointing is invoked automatically during the remote operations calls, thus ensuring that a backup object will start executing from a known state in the event of a failure.The project completed system architecture and demonstration task specifications. The environment provides a computational model in which objects communicate by means of remote operations calls. Objects are replicated at different nodes of the system for reasons of back-up in the event of a node failure. Checkpointing is invoked automatically during the remote operations calls, thus ensuring that a back-up object will start executing from a known state in the event of a failure. Exploitation The results of the project were used in project 818, DELTA-4. Fields of science natural sciencescomputer and information sciencessoftware Programme(s) FP1-ESPRIT 1 - European programme (EEC) for research and development in information technologies (ESPRIT), 1984-1988 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator MARI Applied Technologies Ltd Address Boldon business park witney way NE35 9PE Boldon United Kingdom See on map EU contribution € 0,00 Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all JEAN LEFEBVRE TELECOM France EU contribution € 0,00 Address 31-32 quai de dion bouton 92811 Puteaux See on map Telettra SpA Italy EU contribution € 0,00 Address Via capo di lucca 40126 Bologna See on map Università degli Studi di Bologna Italy EU contribution € 0,00 Address Viale risorgimento 2 40136 Bologna See on map
