Objectif The objective of EPSILON was to build an environment for the development and use of knowledge-based management systems (KBMS) based on standard technologies, namely relational databases and Prolog. It was to be portable, extensible, and available on a wide range of minicomputers and workstations. Three technical goals were set for these objectives to be achieved: -integration of logic programming and database technologies -linguistics extensions and analysis and verification tools -a user interface for non-expert users. The objective was to build an environment for the development and use of knowledge based management systems (KBMS) based on standard technologies, namely relational databases and Prolog. It was to be portable, extensible, and available on a wide range of minicomputers and workstations. Three technical goals were set for these objectives to be achieved: integration of logic programming and database technologies; linguistics extensions and analysis and vertification tools; a user interface for nonexpert users. The project made progress in the prototypeintegration of the general system, in the development of a kernel inference engine allowing the construction of different inference machines by specifying the control structure, in the development of a graphical user interface, using window techniques, and in the connection of distributed data and knowledge bases through local area networks. The project developed the notion of theories and the object oriented concept of links between theories. Techniques that allow a combination of rules and relational algebraic expressions were established. A prototype system was developed to assess company credit worthiness in accordance with the financial and credit policies of the Italian government. A further system assists banker in their assessment of customer loan applications.The EPSILON project made progress in the following four areas: -prototype integration of the general system -development of a kernel inference engine allowing the construction of different inference machines by specifying the control structure -graphical user interface, using window techniques -connection of distributed data and knowledge bases through local area networks (LANs). The project developed the notion of theories and the object-oriented concept of links between theories. Techniques that allow a combination of rules and relational algebraic expressions were established. A prototype system was developed to assess company credit-worthiness in accordance with the financial and credit policies of the Italian government. A further system (the Loan Expert) assists bankers in their assessment of customer loan applications.Exploitation A prototype workstation was produced which allows the use of Unix-based Prolog and a commercially available relational database in one system. A second prototype connects the DBMS workstations to form an integrated KBMS. The work on theories could prove to be a very flexible and powerful approach to the development of knowledge-based systems, especially in a Prolog environment. EPSILON will be ported and experimented on parallel architecture developed in project 2025 (EDS). Champ scientifique humanitieslanguages and literaturelinguisticsnatural sciencescomputer and information sciencesartificial intelligenceexpert systemsnatural sciencescomputer and information sciencesdatabasesrelational databases Programme(s) FP1-ESPRIT 1 - European programme (EEC) for research and development in information technologies (ESPRIT), 1984-1988 Thème(s) Data not available Appel à propositions Data not available Régime de financement Data not available Coordinateur S & M Advanced Technologies Contribution de l’UE Aucune donnée Adresse Via Ermino Spalla 53 00142 Roma Italie Voir sur la carte Coût total Aucune donnée Participants (5) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire ADR-CRISS France Contribution de l’UE Aucune donnée Adresse COURS BERRIAT 38000 GRENOBLE Voir sur la carte Coût total Aucune donnée BENSE KG Allemagne Contribution de l’UE Aucune donnée Adresse DIESELSTRAßE 4420 COESFELD Voir sur la carte Coût total Aucune donnée Institut National des Sciences Appliquées de Lyon (INSA) France Contribution de l’UE Aucune donnée Adresse 20 avenue Albert Einstein 69621 Villeurbanne Voir sur la carte Coût total Aucune donnée UNIVERSITA DEGLI STUDI DI PISA Italie Contribution de l’UE Aucune donnée Adresse Corso Italia 40 56125 PISA Voir sur la carte Coût total Aucune donnée Universität Dortmund Allemagne Contribution de l’UE Aucune donnée Adresse Emil-Figge-Straße 74 44221 Dortmund Voir sur la carte Coût total Aucune donnée