As promised, I will provide some questions that a person who is proficient in the Lean Six Sigma toolset should be asking during project support. I am beginning with MSA - Measurement System Analysis -for variable data because, in my experience, it is the most commonly misunderstood tool.
Variable Gage R&R
w Is the gage capable of measuring the specification? (Is P/T < 10%?)
w Is the gage used to make process adjustments? If so, is it capable of measuring the variation in the process? (Is P/TV or %Study Variation < 10%?)
w What % of Total Variation is represented by Part-to-Part variation in the study?What % of the tolerance does this represent? Is this amount of variation representative of the process capability?
w Did all who use the gage participate in the study? If not, how will others be qualified?
w Are there multiple gages (supplier or customer location?) Have they all been studied? Do they correlate?
w For a gage that is not capable, what is the short term plan (work-around)? Is a solution known?
If you are providing project support (Black Belt or Master Black Belt) and don’t understand the significance of these questions, I suggest you find someone who does and get a tutorial. As always, I’m here to help so drop me a comment.
Saludos,
Aimée
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