"We consider an organization to be a set of constraints on the activities performed by agents. This view follows that of Weber, who views the process of bureaucratization as a shift from management based on self-interest and personalities to one based on rules and procedures. Mintzberg [1983] provides an early (and informal) analysis of organization structure distinguishing among five basic parts of an organization and five distinct organization configurations that are encountered in practice. This “ontology” includes several mechanisms that together achieve coordination, like goals, work processes, authority, positions and communication. The various parts of an organization are distinguished by the specific roles they play in achieving coordination with the above means. The “” (Winograd 1987) on cooperative work in organizations provides an ontology that emphasizes the social activity by which “agents” generate the space of cooperative actions in which they work, rather than the mental state of individuals. The basic idea is that social activity is carried out by language and communication."