Asking “Why?” may be a favorite technique of your 3-year-old child in driving you crazy, but it could teach you a valuable Six Sigma quality lesson. The 5 Whys is a technique used in the Analyze phase ...

The Five Whys is an interrogation technique, formalized in the 1950’s, designed to explore cause-and-effect relationships as related to specific problems. The number of “whys” is taken from the ...