Corrective action is meant to identify the root cause for the Nonconformity. Once the root cause is identified, motto of the company should be initiating an action to eliminate it: The corrective action. For implementation of successful corrective action, the stepping stone is an efficient documentation as only the documentation will help you to verify whether your corrective action was enough, effective and fruitful.Preventive action is performed to eliminate potential event that can create nonconformity. While talking about preventive action, we must remember that the nonconformity has not taken place yet and it is a preventive action of identifying and eliminating the cause of nonconformity.
For effective implementation of preventive action, documentation of the process and steps is a must. Only a proper documentation will help you track the effectiveness and sufficiency of the preventive action process.