PDCA (Plan, Do, Check, and Act) Cycle
Clive Edwards · The Bloomsbury Encyclopedia of Design · 2016
The PDCA Cycle, an iterative quality improvement method, was initially formulated in the 1920s by Walter A. Shewhart, and it has been subsequently further developed by W. Edwards Deming. It is based on a rational arrangement of four steps that can be incrementally repeated. The acronym comes from th