Difference between DMAIC Six Sigma and Lean
Lean Six Sigma
Goal: Reduction of waste in all of its forms throughout the operation
Method: Set operation to order using 5S and visual factory; identify where in the material and information flows waste exist and eliminate it.
Measure: Operational costs.
DMAIC Six Sigma
Goal: Reduction of variation in all processes of the operation
Method: Search for differences in performance between groups, within groups, and over time to identify primary contributions of variation; develop additional understanding of multivariate causes by studying relationships between process inputs and outputs; put controls in place to minimize the contribution of input variation on output variation.
Measures: Variance, standard deviation, Process Capability (Cp and Cpk), sigma value, operational costs.
Industry: Process environments
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