PDCA Ring (Deming cycle)

PDCA(plan-do-check-action abbreviation) cycle is the quality management cycle, in accordance with the quality work according to planning, implementation, audit and action to carry out activities to ensure the achievement of the reliability objectives , and in turn leads to continual improvement in quality. Presented by American scholar Edwards Daming. This four-part cycle is generally used to improve product quality and improve product production processes. This cycle is also known as: Plan-do-study-act (PDSA), Deming Ring (Deming Cicle/cycle/wheel) or Hugh Hart ring. Another different version is OPDCA, which joins O (Observation observation), and some say to get the current situation.

Planning: Product Reliability Objectives prediction and scheduling, reliability planning and determination, reliability of organization and division of Labor. Establish a clear goal and develop relevant plans and procedures to determine the necessary. In this way, it is possible to better measure the gap between the results and objectives of the implementation in the future process in order to better revise them further.

Execution (DO): Reliability job excitation, command and implementation. Perform the plans and procedures specified in the previous step, and gather the necessary information to provide a basis for the next revision and improvement.

Check: Product Reliability assessment and evaluation, reliability operation control and audit. Study the information collected in the previous step and compare it to the expected design (in comparison to the objectives in the planning phase). and propose to modify the plan, including after the implementation of the improvement and the improvement of the plan to improve the enforceability of the program. Using lists and data graphs can be a good indication of the difference between the results and the expected results, which are the necessary data in the next steps.

Amendments (ACT): Coordination of work units of various reliability tasks, improvement of reliability measures, improvement of action execution and follow-up. This step is to find a considerable way to reduce the gap between the planned goals and the results of the process of execution. And make the next plan even more perfect. This is usually done through a study of the root causes of the problem, but the amount of time it takes to find the root cause of the problem is very long, which often leads to no progress on the project. As a result, short-term changes to target requirements are generally taken, while new projects are being created to improve the implementation process. Most of the time, more detailed planning requirements make it easier to execute the next step of the plan. In fact, there are other amendments to the meaning of the act in English, so many people tend to use the amendment (Adjust) to explain PDCA's a. This will better reflect the meaning of the improvement of a and many of the corrections are not performed in this cycle, but in the next cycle of the D-Link execution.

PDCA Ring (Deming cycle)