Objetivo The DESCARTES project aimed to assist developers of real-time embedded systems in Ada by investigating formal methods and designing software and hardware tools. Formal semantics and proof systems for real-time languages, with emphasis on composability, were investigated. A specification language including real-time constraints and correctness-preserving transformations was designed. Traceability of transformation decisions in the context of real-time constraints and analysis tools was developed.The project aimed to assist developers of real time embedded systems in Ada by investigating formal methods and designing software and hardware tools. Formal semantics and proof systems for real time languages, with emphasis on composability, were investigated. A specification language including real time constraints and correctness preserving transformations was designed. Traceability of transformation decisions in the context of real time constraints and analysis tools was developed. Work was undertaken on the formalization of the semantics of an extension of Statelan with temporal logic, and on checking the consistency of combined specifications. Two directions were pursued, concentrating on the incorporation of Me-Too and Statelan specifications in Ada, and a system for tracing and analysing execution histories of Ada programs without disturbing the target machine was specified, and these tools implemented and demonstrated.Work was undertaken on the formalisation of the semantics of an extension of Statelan with temporal logic, and on checking the consistency of combined specifications. Two directions were pursued, concentrating on the incorporation of Me-Too in the Statemate system, and on the methodology of refinement. Work was started on the translation of Me-Too and Statelan specifications in Ada, and a system for tracing and analysing execution histories of Ada programs without disturbing the target machine was specified, and these tools implemented and demonstrated. Exploitation An Ada debugger system was developed by ES Dassault, a partner in the aerospace industry, for testing real-time Ada systems through internal use. An immediate impact on the quality and reliability of real-time embedded systems implemented in Ada is expected. Ámbito científico natural sciencescomputer and information sciencessoftwarehumanitieshistory and archaeologyhistory 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 GSI TECSI Software SA Aportación de la UE Sin datos Dirección 6 Cours Michelet 92064 Paris la Défense Francia Ver en el mapa Coste total Sin datos Participantes (5) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo AVIONS MARCEL DASSAULT-BREGUET AVIATION Francia Aportación de la UE Sin datos Dirección QUAI MARCEL DASSAULT 92214 SAINT-CLOUD Ver en el mapa Coste total Sin datos FOXBORO NEDERLAND NV Países Bajos Aportación de la UE Sin datos Dirección KONINGSWEG Postbus 75 3762 SOEST Ver en el mapa Coste total Sin datos SYSTEAM KG Alemania Aportación de la UE Sin datos Dirección AM RUPPURRER SCHLOSS 7500 KARLSRUHE Ver en el mapa Coste total Sin datos TECHNISCHE UNIVERSITEIT EINDHOVEN Países Bajos Aportación de la UE Sin datos Dirección DEN DOLECH 2 Postbus 513 5600 MB EINDHOVEN Ver en el mapa Coste total Sin datos University of Stirling Reino Unido Aportación de la UE Sin datos Dirección FK9 4LA Stirling Ver en el mapa Coste total Sin datos
