Objective 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). Fields of science natural sciencescomputer and information sciencesknowledge engineeringnatural sciencescomputer and information sciencesdatabasesrelational databases Programme(s) FP1-ESPRIT 1 - European programme (EEC) for research and development in information technologies (ESPRIT), 1984-1988 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator Consorzio per la Ricerca e le Applicazioni di Informatica Address Località santo stefano 87036 Rende Italy See on map EU contribution € 0,00 Participants (6) Sort alphabetically Sort by EU Contribution Expand all Collapse all CRI - DDC Denmark EU contribution € 0,00 Address See on map Enidata SpA Italy EU contribution € 0,00 Address Via paolo di dona 3/a 00100 Roma See on map Institut National de Recherche en Informatique et en Automatique - INRIA France EU contribution € 0,00 Address Domaine de voluceau-rocquencourt 78153 Le chesnay See on map Links Website Opens in new window PHILIPS GLOEILAMPENFABRIEKEN NV Netherlands EU contribution € 0,00 Address See on map UNIVERSITAIRE INSTELLING ANTWERPEN Belgium EU contribution € 0,00 Address Universiteitsplein 1 2610 Wilrijk See on map Università degli Studi di Roma 'La Sapienza' Italy EU contribution € 0,00 Address Via eudossiana 00184 Roma See on map
