The 3 day classroom ILSSI.org Internationally Accredited Lean Six Sigma Black Belt upgrade course is designed for someone who has already taken a Lean Six Sigma Green Belt course and passed an Internationally Accredited Green Belt exam. It expands on the statistical methods, tools and techniques of the Measure and Analyze phase, advanced use of DMAIC and also teaches about the role of the Black Belt in the enterprise framework. The Black Belt certification exam is a 3 hour, 150 multiple-choice question proctored exam.