To easily enlarge the behavior of an object.

A button as an actor being an object having data to determine self-behavior, a behavior being an object for operating data which the actor has and a scheduler being an object which has the behavior and which time- schedules the behavior separately exist. The behavior of the actor is controlled by operating data of the actor in accordance with time scheduling by the scheduler in behavior. Thus, the button as the actor behaves as shown in a drawing, for example.