In case of problems due to the control condition 4M in 4M Survey Sheet is not good enough, we need to prevent a recurrence by following the Loop on the right side of the Figure-8 Diagram by The analysis of additional conditions (Step5) set. measures to correct the cause of the analysis (Step6) and reviewing 4M Survey Sheet (Step7) and enter the information back to the user in order to control the condition has improved to (Step8).
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