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If you need more data in the Analyze Phase you would use the same techniques that you used in the Measure Phase.

To get more depth on data collection you can access the free Yellow Belt Training ( or watch the Webinar, “How to Successfully Collect Process Data for Your Lean Six Sigma Project” (Link:

Elisabeth Swan

Elisabeth is a Managing Partner at, the co-author of The Problem-Solver’s Toolkit and co-host of the Just-in-Time Cafe. 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.