PDCA cycle
Deming Shughart Cycle. 1986.
https://gyazo.com/06c74a2cb9ea2d725636e2b9a39327c1
A method originally created to bring scientific methodology to quality assurance of mass-produced goods.
https://gyazo.com/c1ab9c9d8e8bc3ca10d5c58e51f6dd9a
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