| 摘要 |
A process rule storage unit stores a row of processes before and after each process in a process flow storage unit, a row of processes which must not exist before and after the process and a row of processes which are allowed to exist before and after process but require an operator's judgment. The process rule detection unit retrieves the process rule storage unit, and compares each process code in a row of processes with the process codes in the process flow storage unit to detect whether both condition codes agree with each other.
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