ISO 9001 Internal Audit
ISO 9001 Internal audit is mandatory for ISO Certification. It is also mandatory after certification. Internal audit is a kind of monitoring system to see how your processes are running. Are they following ISO 9001 requirements. Are the employees keeping record of their activities? What mistakes they are doing during their process running time? Is the quality checking records are maintained? All these things are checked during the iso 9001 internal audit.
NCR and CA Plan are another two things after completion iso internal audit. Usually it helps to know what problems are there in the processes. How those problems were solved. CA plans help you to take action on the problems, It also help not to arise those same problem in the rocesses.