The concept applied in the improvement cycle such as Shewhart; s cycles (PDCA Concept) is a simple step, but if carried out in accordance with existing procedures will have a huge effect on improvement. Plan-Do-Check-Action returned to the Plan-Do-Check-Action and so on.
Stages PDCA Concept if would like further elaborated the following explanation:
PLAN: Planning an improvement project which will be composed of the following activities: