Objetivo 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. Ámbito científico natural sciencescomputer and information sciencessoftware Programa(s) FP1-ESPRIT 1 - European programme (EEC) for research and development in information technologies (ESPRIT), 1984-1988 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación Data not available Coordinador MARI Applied Technologies Ltd Aportación de la UE Sin datos Dirección Boldon Business Park Witney Way NE35 9PE Boldon Reino Unido Ver en el mapa Coste total Sin datos Participantes (3) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo JEAN LEFEBVRE TELECOM Francia Aportación de la UE Sin datos Dirección 31-32 QUAI DE DION BOUTON 92811 PUTEAUX Ver en el mapa Coste total Sin datos Telettra SpA Italia Aportación de la UE Sin datos Dirección Via Capo di Lucca 40126 Bologna Ver en el mapa Coste total Sin datos Università degli Studi di Bologna Italia Aportación de la UE Sin datos Dirección Viale Risorgimento 2 40136 Bologna Ver en el mapa Coste total Sin datos
