PDCA Circle
PDCA (Plan, do, check act) Circle in color. This image by me is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.
By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.