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What are Matching X & Y Measures?

Matching X & Y Measures is a template that illustrates which input and process “X” measures impact the “Y” or output measure. This helps when determining what data to collect to uncover the critical “X” Measures. This is related to the equation: Y = ƒ(x1, x2, x3…) when searching for root cause.

To learn how to use the Matching X & Y Measures and how to apply Lean or Six Sigma, check out our Free Lean Six Sigma Yellow Belt TrainingGreen Belt Training or Lean Training.


Elisabeth Swan

Elisabeth is a Managing Partner & Executive Advisor at For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.