Evolution of collective commitment during reconfiguration

In this paper we aim to describe dynamic aspects of social and collective attitudes in teams of agents involved in Cooperative Problem Solving (CPS). Particular attention is given to the strongest motivational attitude, collective commitment, and its evolution during team action. First, building on our previous work, a logical framework is sketched in which all relevant social and collective attitudes are formalized. Two de nitions of collective commitments are given, both based on social plans, but appropriate in di erent contexts, obeying particular properties with respect to the team's organization. Moreover, a dynamic logic component is added to this framework in order to capture the e ects of the complex actions that are involved in the consecutive stages of CPS, namely potential recognition, team formation, plan formation and team action. During team action, the collective commitment leads to the execution of agent-speci c actions. A dynamic and unpredictable environment may, however, cause the failure of some of these actions, or present the agents with new opportunities. The abstract recon guration algorithm, presented in a previous paper, is designed to handle the replanning needed in such situations in an eÆcient way. In this paper, we use the dynamic logic component of the logical framework to describe intended dynamic properties of the team's collective commitment during recon guration.