Obiettivo 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). Campo scientifico natural sciencescomputer and information sciencesknowledge engineeringnatural sciencescomputer and information sciencesdatabasesrelational databases Programma(i) FP1-ESPRIT 1 - European programme (EEC) for research and development in information technologies (ESPRIT), 1984-1988 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento Data not available Coordinatore Consorzio per la Ricerca e le Applicazioni di Informatica Contributo UE Nessun dato Indirizzo Località Santo Stefano 87036 Rende Italia Mostra sulla mappa Costo totale Nessun dato Partecipanti (6) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CRI - DDC Danimarca Contributo UE Nessun dato Indirizzo Mostra sulla mappa Costo totale Nessun dato Enidata SpA Italia Contributo UE Nessun dato Indirizzo Via Paolo di Dona 3/A 00100 Roma Mostra sulla mappa Costo totale Nessun dato Institut National de Recherche en Informatique et en Automatique - INRIA Francia Contributo UE Nessun dato Indirizzo Domaine de Voluceau-Rocquencourt 78153 Le Chesnay Mostra sulla mappa Collegamenti Sito web Opens in new window Costo totale Nessun dato PHILIPS GLOEILAMPENFABRIEKEN NV Paesi Bassi Contributo UE Nessun dato Indirizzo Mostra sulla mappa Costo totale Nessun dato UNIVERSITAIRE INSTELLING ANTWERPEN Belgio Contributo UE Nessun dato Indirizzo UNIVERSITEITSPLEIN 1 2610 WILRIJK Mostra sulla mappa Costo totale Nessun dato Università degli Studi di Roma 'La Sapienza' Italia Contributo UE Nessun dato Indirizzo Via Eudossiana 00184 Roma Mostra sulla mappa Costo totale Nessun dato