Even two people with identical degrees from identical universities can have quite different capabilities, strengths, weakness, and areas of expertise. The same is going to be true for two Black Belts.
What is the driving force for this common standard?
Is the desire for “certification” based upon a potential employer’s need to easily weed through a plethora of applications? Get real. Even if every single applicant attended the exact same training classes, there will be that natural variation plus the varied backgrounds which will make some applicants more capable than others.
I’ve been in the Six Sigma Black Belt business as long as it has existed. I appreciate the need for standardization within a company, but I just don’t see why standardization is necessary between companies.
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