Historical and computational aspects of paraconsistency in view of the logic foundation of databases

  • Authors:
  • Hendrik Decker

  • Affiliations:
  • Instituto Tecnológico de Informática, Universidad Politécnica de Valencia, Spain

  • Venue:
  • Proceedings of the 2nd international conference on Semantics in databases
  • Year:
  • 2001

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Abstract

Modern information systems must respect certain restrictions in order to guarantee the proper and desired functionality. Semantic constraints help to prevent inconsistencies in the stored data resulting from faulty updates. Security constraints are to maintain integrity, secrecy and availability over updates and over queries. In this paper we design an unifying framework for both kinds of constraints in order to study interactions between them. We view a distributed information system as a multi-agent system in which all components of the system are seen as agents. We present a temporal and epistemic logic for the defined framework and show in an example how security constraints and semantic constraints can be expressed in this framework.