PURPOSE: To make it possible to describe the behavior of software by making it into a model in the form of a state transition map by describing the behavior of a user interface device by a state node, a transition, an event node and an oriented arc connecting them. ;CONSTITUTION: When a user interface performs the state change from a state A to other state B, each state is expressed by a state node 11 and a transition 12 expressing the state transition from the state A to the state B is placed between two state nodes 11. By connecting between the state node 11 expressing the state A and the transition 12 and between the the transition 12 and the state node 11 expressing the state B by an oriented arc 13, respectively, it is described. By expressing an event to be a trigger by an event node 14 and connecting between the event node 14 and the transition 12 by the oriented arc 15 when the state transition is generated by the trigger, it is described.;COPYRIGHT: (C)1994,JPO
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