PDCA (Plan-Do-Check-Act)
Dr. W. Edwards Deming used a four step process, which is more of a cycle – – PLAN, DO, CHECK, ACT for process improvement. The idea in the PLAN step is to define the process to improve. The DO step is implementing the plan and measuring its performance. The team then takes those measurements to assess whether they are getting the desired results. This is known as the CHECK step. The ACT step follows. The team decides on changes that need to be made to improve the process; then, the whole cycle starts again.