Plan-Do-Check-Act (PDCA)

This Deming cycle sample shows plan-do-control-act diagram variance.
It was designed on the base of Wikimedia Commons file: Demingcycle.svg. [commons.wikimedia.org/ wiki/ File:Demingcycle.svg]
"PDCA was made popular by Dr W. Edwards Deming, who is considered by many to be the father of modern quality control; however, he always referred to it as the "Shewhart cycle". Later in Deming's career, he modified PDCA to "Plan, Do, Study, Act" (PDSA) because he felt that "check" emphasized inspection over analysis. PDSA cycle was used to create the model of know-how transfer process." [PDCA. Wikipedia]
The plan-do-control-act diagram example "Deming cycle" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This Deming cycle sample shows plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: Deming PDCA cycle.PNG. [commons.wikimedia.org/ wiki/ File:Deming_ PDCA_ cycle.PNG]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"The concept of PDCA is based on the scientific method, as developed from the work of Francis Bacon (Novum Organum, 1620). The scientific method can be written as "hypothesis"–"experiment"–"evaluation" or plan, do and check." [PDCA. Wikipedia]
The plan-do-check-act diagram example "Deming PDCA cycle" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This circular arrows diagram sample depicts the Plan–Do–Check–Act cycle.
"PDCA (plan–do–check–act or plan–do–check–adjust) is an iterative four-step management method used in business for the control and continuous improvement of processes and products. It is also known as the Deming circle/ cycle/ wheel, Shewhart cycle, control circle/ cycle, or plan–do–study–act (PDSA). Another version of this PDCA cycle is OPDCA. The added "O" stands for observation or as some versions say "Grasp the current condition." This emphasis on observation and current condition has currency with Lean manufacturing/ Toyota Production System literature." [PDCA. Wikipedia]
The diagram example "PDCA cycle" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Circular Arrows Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.

This business infographic sample shows the plan–do–check–act cycle. It was designed on the base of the Wikimedia Commons file: PDCA-Cycle.png.
[commons.wikimedia.org/ wiki/ File:PDCA-Cycle.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"PDCA (plan–do–check–act or plan–do–check–adjust) is an iterative four-step management method used in business for the control and continual improvement of processes and products. It is also known as the Deming circle/ cycle/ wheel, Shewhart cycle, control circle/ cycle, or plan–do–study–act (PDSA)." [PDCA. Wikipedia]
The business infographic example "PDCA cycle" was designed using ConceptDraw PRO diagramming and vector drawing software extended with the Business and Finance solution from Illustration area of ConceptDraw Solution Park.

This Deming cycle sample shows plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: PDCA Process.png.
"Depiction of the PDCA cycle (or Deming cycle). Continuous quality improvement is achieved by iterating through the cycle and consolidating achieved progress through standardization." [commons.wikimedia.org/ wiki/ File:PDCA_ Process.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
The plan-do-check-act diagram example "PDCA Process" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This Deming cycle sample shows multiloop plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: PDCA-Multi-Loop.png.
"Multiple iterative loops of a PDCA (plan, do, check act) cycle, also known as Deming Cycle. The loops are repeated until the problem is solved." [commons.wikimedia.org/ wiki/ File:PDCA-Multi-Loop.png]
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. [creativecommons.org/ licenses/ by-sa/ 4.0/ deed.en]
The plan-do-check-act diagram example "Multiloop PDCA" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This Deming cycle sample shows plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: La roue de Deming pdca.jpg. [commons.wikimedia.org/ wiki/ File:La_ roue_ de_ Deming_ pdca.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"Shewhart described manufacture under "control"—under statistical control—as a three-step process of specification, production, and inspection. ...
Shewhart intended the analyst to take action based on the conclusions of the evaluation. According to Deming, during his lectures in Japan in the early 1950s, the Japanese participants shortened the steps to the now traditional plan, do, check, act. Deming preferred plan, do, study, act because "study" has connotations in English closer to Shewhart's intent than "check"." [PDCA. Wikipedia]
The plan-do-check-act diagram example "Deming PDCA" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This Deming cycle sample shows plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: PDCA-Kreis (Qualitätsmanagement) mit Beschriftung.svg. [commons.wikimedia.org/ wiki/ File:PDCA-Kreis_ (Qualitätsmanagement)_ mit_ Beschriftung.svg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"PDCA was made popular by Dr W. Edwards Deming, who is considered by many to be the father of modern quality control; however, he always referred to it as the "Shewhart cycle"." [PDCA. Wikipedia]
"Quality management ensures that an organization, product or service is consistent. It has four main components: quality planning, quality assurance, quality control and quality improvement. Quality management is focused not only on product and service quality, but also on the means to achieve it. Quality management, therefore, uses quality assurance and control of processes as well as products to achieve more consistent quality." [Quality management. Wikipedia]
The plan-do-check-act diagram example "Quality management PDCA" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.

This Deming cycle sample shows plan-do-check-act diagram.
It was designed on the base of Wikimedia Commons file: Pdca.png. [commons.wikimedia.org/ wiki/ File:Pdca.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"PDCA (and other forms of scientific problem solving) is also known as a system for developing critical thinking. At Toyota this is also known as "Building people before building cars." Toyota and other Lean companies propose that an engaged, problem-solving workforce using PDCA is better able to innovate and stay ahead of the competition through rigorous problem solving and the subsequent innovations. This also creates a culture of problem solvers using PDCA and creating a culture of critical thinkers." [PDCA. Wikipedia]
The plan-do-check-act diagram example "PDCA" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.