PROBLEM TO BE SOLVED: To effectively utilize state information acquired from a system currently in operation in the design of system definition in the other system.;SOLUTION: First operation information by adding system definition items which bring a state to the state information obtained from a first execution device 110A currently in operation is stored in an operation estimation device 120, when the system definition items added to the first operation information are included in system definition for estimation, the state brought by the system definition which is attempted to be adopted is confirmed by transmitting the first operation information to a system management terminal 130.;COPYRIGHT: (C)2007,JPO&INPIT
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