Organizational structure and responsibility.An analysis in a dynamic logic of organized collective agency.

Aim of the present paper is to provide a formal characterization of various different notions of responsibility within groups of agents (Who did that?Who gets the blame?Who is accountable for that?etc.).To pursue this aim,the papers proposes an organic analysis of organized collective agency by tackling the issues of organizational structure,role enactment,organizational activities,task-division and task-allocation.The result consists in a semantic framework based on dynamic logic in which all these concepts can be represented an in which various notions of responsibility find a formalization.The background motivation of the work consists in those responsibility-related issues which are of particular interest for the theory and development of multy-agent system.