Interested in the Six Sigma Black Belt but unsure whether you need one? Here's a guide to this quality improvement certification and how it differs from other belts.

However, if your specification is that far away, then Six Sigma will be defined as a process having 3.4 defects per million ...

Yellow Belt is the introductory level of Lean Six Sigma certification, which is suitable for everyone who has an interest in learning and practicing continuous improvement Lean and Six Sigma, two ...