Abstract: A new activity coordination system coordinates actions in connection the various constituents of an activity by a plurality of actors. The system includes a plurality of objects each associated with a constituent, with each object including state information defining a state and constituent information containing information relating to said constituent. The system further includes tables to identify processing actions in connection with the various states of each object, state transitions for each object in connection with each action defined by said action definition table, and actors associated with each constituent. The system initially determines, in response to constituent information from an actor and the object access definition table, the association of the actor with respect to a constituent and selectively processes the object associated with the constituent as defined by said action definition table and modifies the state of the object as defined by said state transition definition table.