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Rethinking agent roles: extending the role definition in the BRAIN framework

Agents represent a technology that grants developers a new way to develop complex applications. Thanks to their autonomy, reactivity and mobility agents can be exploited in today's applications, even playing on the behalf of users. Agents are not really useful if isolated, instead their powerful is increased as much as they can cooperate and coordinate with other agents or environments. To deal with the need of coordination, developers can use the role-based approach, where coordination issues are embedded in roles exploited by agents. Nevertheless, up to now, agent roles have been entities that agents can exploit, without following and providing a real agent evolution, as happens in the real life for human being. In this paper, we propose work in progress within the BRAIN role-based framework to overtake the above limitation, providing a new definition of role.