Lean Six Sigma Green Belt PDF

Nobody has ever approved a project phase because the numbers spoke for themselves. Numbers need a speaker who says what changed, how sure the team is and what the room must decide. This guide shows how to present a Six Sigma project at tollgate reviews, on an A3 or storyboard, with charts a non-statistician can read, and at the final report-out. It closes with what the IASSC Green Belt exam expects you to know.

Why do the numbers never speak for themselves in a project review?

The sentence "the data speaks for itself" feels modern and rigorous, and it is the quickest way to lose a sponsor. A chart is evidence for a claim. If you do not state the claim, each person in the room invents one, and they will not all invent the same one. The finance manager sees a cost, the process owner sees criticism of her team, and the sponsor sees a delay.

Most Six Sigma people have a strong analytical habit and a weak telling habit, because the training is full of tools and thin on talking. That is why a Green Belt can run a flawless hypothesis test and still leave a review with the phase unapproved. The test answered a question the team had. The audience had a different question.

Three facts about the audience explain most of what follows.