PROBLEM TO BE SOLVED: To input data on a result table in a recycle processing and to easily change the database, even when the content of the recycle processing is changed. SOLUTION: The database 4 has a classified object master 43 storing a record constituted of a classified object ID, the generation process ID of the classified object and the next process ID of the classified object and the result table 41 for storing a record constituted of lot ID showing a processing lot, a classified object ID, next process ID showing the next process of the obtained classified object and the weight of the classified object. When data is inputted to the actual performance database, the classified object master 43 is retrieved and information on the classified object to be inputted, is instructed.
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