In a management system one can consider three kinds of action:
• Correction action;
• Corrective action and;
• Preventive action.
Correction action is about dealing with a non-conformity. The purpose is to eliminate the non-conformity. For example, rework a defective part.
Corrective action is about eliminating the cause of a particular non-conformity. For example, why is the part defective? Because our temperature control system during production is not working properly. A corrective action can improve the temperature control system and eliminate that kind of defect.
Preventive action is about eliminating the cause of a potential non-conformity. For example, what kind of actions should the company develop to reduce the monthly frequency of defective parts.