The badge earner has mastered Lean Thinking principles, including the history and evolution of Lean, how an enterprise applies Lean principles, and the role of PDCA in a Lean enterprise. The earner has a high-level understanding of typical Lean tools. Lean Thinking principles History of the evolution of Lean What a Lean enterprise looks like and runs like. What is PDCA and its role in a Lean Enterprise. A high level overview of typical Lean Tools.