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A Context-Based Institutional Normative Environment

  • Henrique Lopes Cardoso
  • Eugénio Oliveira
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5428)

Abstract

We explore the concept of an agent-based Electronic Institution including a normative environment that supports electronic contract formation by providing a contextual normative background. We formalize the normative state using first-order logic and define institutional rules and norms operating on that state. A suitable semantics regarding the use of norms within a hierarchical context structure is given, based on norm activation conflict and defeasibility. Norm activation relies on substitution as in first-order logic. Reasoning about the fulfillment and violation of deadline obligations is formalized using linear temporal logic; implementation with institutional rules is discussed. Examples exploiting the normative environment are given.

Keywords

Normative Environment Context Norm Activation Defeasibility 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Henrique Lopes Cardoso
    • 1
  • Eugénio Oliveira
    • 1
  1. 1.LIACC, DEI / Faculdade de EngenhariaUniversidade do PortoPortoPortugal

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