Modelling and visualizing agent conversations

Authors:
Marisuz Nowostawski;Martin Purvis;Stephen Cranefield
Affiliations:
Department of Information Science, University of Otago, PO Box 56, Dunedin, New Zealand;Department of Information Science, University of Otago, PO Box 56, Dunedin, New Zealand;Department of Information Science, University of Otago, PO Box 56, Dunedin, New Zealand
Venue:
Proceedings of the fifth international conference on Autonomous agents
Year:
2001

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Abstract

Although the notion of conversations has been discussed for some time as a way in which to provide an abstract representation of extended agent message exchange, there is still no consensus established concerning how to use these abstractions effectively. This paper describes a layered approach based on coloured Petri Nets that can be used for modelling complex, concurrent conversations among agents in a multi-agent system. The approach can be used both to define simple conversation protocols and to define more complex conversation protocols composed of a number of simpler conversations. With this method it is possible (a) to capture the concurrent characteristics of a conversation, (b) to capture the state of a conversation at runtime, and (c) to reuse conversation structures for the processing of multiple concurrent messages.