Black Belt / Green Belt / Champion

Six Sigma role hierarchy based on training level and project responsibility. Champions are executives who sponsor projects, remove barriers, and allocate resources. Black Belts are full-time quality experts with 4+ weeks statistical training who lead complex projects and mentor Green Belts. Green Belts are part-time practitioners with 1-2 weeks training who lead smaller projects while maintaining regular job duties. Different from A3 coaching model where anyone can lead improvement with management support. Belt certification requires completing projects and demonstrating statistical competency.