Objectif The objective of KIWI was to develop a knowledge-based user-friendly system for managing access to external information bases. Four aspects were emphasised: -a knowledge representation formalism, through the development and use of the OOPS language, based on an object-oriented approach -an Advanced Database Environment (ADE), based on the combination of logic programming and databases -the integration of the knowledge representation formalism and ADE within a single concept -an intelligent interface between the end-user and the system, based on graphics. The objective was to develop a knowledge based user friendly system for managing access to external information bases. Four aspects were emphasised: a knowledge representation formalism, through the development and use of the OOPS language, based on an object oriented approach; an advanced database environment (ADE), based on the combination of logic programming and databases; the integration of the knowledge representation formalism and ADE within a single concept; an intelligent interface between the end user and the system, based on graphics. The definition of the OOPS language and its prototype implementation, together with specification of the architecture of the global system, are available. The architecture of the ADE layer has also been achieved, and theoretical work on the concept of the bottom up execution of Prolog programs was performed. State of the art results in the handling of recursive queries were achieved. Demonstrations have been given of the user interface (UI), the knowledge handler (KH) and the advanced database environment (ADE), which are the three main modules, and of the full system. A tight integration between the UI and KH was achieved and shown to be possible between KH and ADE. A final prototype including all the modules of the system (loosely integrated in what concerns KH and ADE) was successfully demonstrated.The definition of the OOPS language, and its prototype implementation together with specification of the architecture of the global system, are available. The architecture of the ADE layer has also been achieved, and theoretical work on the concept of the bottom-up execution of Prolog programs was performed. State-of-the-art results in what concerns the handling of recursive queries were achieved. Demonstrations have been given of the User Interface (UI), the Knowledge Handler (KH) and the Advanced Database Environment (ADE), which are the three main KIWI modules, and of the full KIWI system. A tight integration between the UI and KH was achieved and shown to be possible between KH and ADE. A final prototype including all the modules of the KIWI system (loosely integrated in what concerns KH and ADE) was successfully demonstrated. Exploitation The combination of the deductive powers of logic programming with the data management capabilities of large relational databases will result in powerful computing environments, which will dominate computing in the 1990s. KIWI will contribute substantially to meeting the key requirements for establishing such environments in a multi-paradigm way using object-oriented techniques, logic programming, rule-based formalisms, etc. It will do this especially in the areas of knowledge representation formalisms, recursive queries handling, and the execution of Prolog programs. The results of KIWI constitute the basis for the ESPRIT II project KIWIS (2424). Champ scientifique sciences naturellesinformatique et science de l'informationingénierie de la connaissancesciences naturellesinformatique et science de l'informationbases de donnéesbase de données relationnelle 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 Consorzio per la Ricerca e le Applicazioni di Informatica Adresse Località santo stefano 87036 Rende Italie Voir sur la carte Contribution de l’UE Aucune donnée Participants (6) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire CRI - DDC Danemark Contribution de l’UE € 0,00 Adresse Voir sur la carte Autres sources de financement Aucune donnée Enidata SpA Italie Contribution de l’UE € 0,00 Adresse Via paolo di dona 3/a 00100 Roma Voir sur la carte Autres sources de financement Aucune donnée Institut National de Recherche en Informatique et en Automatique - INRIA France Contribution de l’UE € 0,00 Adresse Domaine de voluceau-rocquencourt 78153 Le chesnay Voir sur la carte Liens Site web Opens in new window Autres sources de financement Aucune donnée PHILIPS GLOEILAMPENFABRIEKEN NV Pays-Bas Contribution de l’UE € 0,00 Adresse Voir sur la carte Autres sources de financement Aucune donnée UNIVERSITAIRE INSTELLING ANTWERPEN Belgique Contribution de l’UE € 0,00 Adresse Universiteitsplein 1 2610 Wilrijk Voir sur la carte Autres sources de financement Aucune donnée Università degli Studi di Roma 'La Sapienza' Italie Contribution de l’UE € 0,00 Adresse Via eudossiana 00184 Roma Voir sur la carte Autres sources de financement Aucune donnée
