A Context-Based Institutional Normative Environment

  • Authors:
  • Henrique Lopes Cardoso;Eugénio Oliveira

  • Affiliations:
  • LIACC, DEI / Faculdade de Engenharia, Universidade do Porto, Porto, Portugal 4200-465;LIACC, DEI / Faculdade de Engenharia, Universidade do Porto, Porto, Portugal 4200-465

  • Venue:
  • Coordination, Organizations, Institutions and Norms in Agent Systems IV
  • Year:
  • 2009

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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.