Abstract

Three possibilities of modelling the agents cooperation and negotiation by means of place/transition Petri nets (P/T PN) are introduced and analyzed in this paper. Namely, the cooperation and negotiation by means of P/T PN transitions(modelling the occurrence of discrete events), by means of P/T PN places (modelling the states of the interface which is often represented by a supervisor) and by means of their combination are concerned. The particular autonomous agents are represented by modules modelled by means of P/T PN subnets. The first kind of cooperation and negotiation is realized by the mutual communication of agents on way of the information exchange between the particular states of the communicating agents through the interface realized by Petri net (PN) transitions. The second kind is realized by the mutual communication of agents on way of the mediate states of the interface represented by PN places. The combined approach uses the communication of the agents through PN transitions and places.

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