Lean Manufacturing and Six Sigma Definitions

Glossary terms, history, people and definitions about Lean and Six Sigma


The differences observed or measured between individual items or parts. There is variation in everything, although some variation is too small to measure to the appropriate resolution, or the variation cannot be physically measured.
Examples of variation include work commute times each day of the week, heights of students in a class, website loading times by hour, temperature inside oven every hour, weight of cell phone from manufacturing line, voter turnout percentage by precinct.


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