Aimee E. Cowher

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

Tags: Black Belt, Gage R&R, Lean Six Sigma, Master Black Belt, MSA, project support