Lean

Six Sigma

Theory

Eliminate waste

Reduce variation

Objective

Deliver value to the customer

Deliver value to the customer

Focus on

Value stream mapping

Variation in process (Problem focused)

Assumptions

Improvement in waste removal targeting business performance

Reduction in the variation of all input processes, improves system output

Variable tiny improvements make a better analysis system

Existence of the problem

Goal

Increase speed & efficiency

Improve quality with low cost