First of all, look at how your system documents are stipulated. Pay attention to four procedural documents, one is about unqualified procedures, because what the assessor left is unqualified in external audit, and the second is the handling procedure of corrective and preventive measures. The most important thing is how you correct and prevent it, and the methods must be reasonable. The third procedure is the personnel training and evaluation procedure, and the fourth procedure is the document and record control procedure.