Tony,
It is very applicable and very easy. The question that you need to answer is what are the acceptable specifications for the “clean” laundy. Once you have specifications, you measure your process to find out if you even need a Six Sigma DMAIC project to improve the process. Does that make sense?
So for example, output specs might be:
color whiter than X on a scale from A to Z
biological matter less than X ppm
zero wrinkles
Once you’ve defined the correct metrics for your process, then you can measure them. Please let me know if you would like me to clarify anything.
Ty
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