Definition
The PDCA Cycle is a continuous improvement model based on four stages: Plan, Do, Check and Act.
Human Explanation
PDCA helps introduce changes in an organised way. First, an action is planned. It is then carried out and its results are checked. Finally, a decision is made to keep the solution or improve it further.
Why it Matters
Using the PDCA Cycle reduces the risk of random changes and supports decisions based on actual results.
Conceptual Boundary
PDCA is not a one-time project. It is a repeatable cycle used to improve processes systematically.
Practical Perspective
The Check stage provides the greatest value in PDCA. Without checking the results, it is difficult to know whether a change was truly an improvement.