PDCA cycle

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PDCA cycle PDCA cycle PDCA cycle is also known as the Deming cycle. It was first proposed by the American quality management expert Dr. Deming, and it represents the scientific procedure that should be followed in total quality management. The entire process of total quality management activities involves the formulation of quality plans and their organizational implementation, and this process operates continuously in a cycle based on the PDCA cycle. PDCA stands for the first letters of the English words Plan (planning), Do (execution), Check (inspection), and Action (taking action). The PDCA cycle is a scientific process for quality management that follows this sequence, with the cycle repeating continuously. The operation of total quality management activities relies on the cycle of management; in other words, efforts to improve and resolve quality issues, as well as those aimed at surpassing advanced standards, all require the use of the scientific PDCA cycle. Whether it is to improve product quality or reduce the number of defective products, goals must first be set – that is, to what extent should the quality be improved and by how much should the defect rate be reduced? A plan is needed for this ； This plan includes not only goals but also the measures necessary to achieve them ； After the plan is formulated, it is necessary to conduct inspections in accordance with that plan to see whether the desired outcomes have been achieved and whether the set goals have been met ； Identify problems and causes through inspection ； Finally, it is necessary to take action by turning experiences and lessons into standards and establishing systems. ) As the basic method for operating a total quality management system, the PDCA cycle requires the collection of large amounts of data, as well as the integrated use of various management techniques and methods. The PDCA cycle has three characteristics: ① Every level of quality management employs a PDCA cycle, forming an organic whole in which larger cycles encompass smaller ones, with each cycle linking to the next and serving both to restrict and complement one another. In the PDCA cycle, generally speaking, the cycle at the higher level serves as the basis for the cycle at the lower level, while the cycle at the lower level is the implementation and concretization of the cycle at the higher level. ②Each PDCA cycle does not operate in a repetitive manner at the same level; rather, it is like climbing stairs, with each cycle bringing new goals and tasks. This means that through quality management, a set of problems is resolved after each cycle, and the quality level improves. In the PDCA cycle, phase A is crucial, as it involves everything from formulating quality objectives and implementing them as well as conducting inspections, to identifying gaps and their causes.