What is the difference between Six Sigma Green Belt and Black Belt?

Six Sigma is a business strategy that involves implementing quality metrics to a process to improve the overall efficiency and profitability. Six Sigma certified professionals, by eliminating the possible defects in a business process help to improve the end result and customer satisfaction. A Six Sigma team can consist of professionals with different levels of Six Sigma certification. There are mainly three belts - Yellow, Green, and Black Belt. But there are professionals who also go for the Master Black Belt to further improve their skills.rnLet us see the difference between Six Sigma Green Belt and Black Belt.rnGreen Belt Responsibilities and Requirements:rnSix Sigma Green Belts conduct analysis and solve problems related to quality. They have a fair knowledge of the analytical tools and also be able to lead a team on the projects. They work in a team which is directly supervised by a Six Sigma Black Belt. They are responsible for collecting the data for Black Belt projects.rnSix Sigma Green Belt certification requirements can vary from organization to organization. Green Belt is the first formal level of training therefore, any graduate with working experience can get Six Sigma Green Belt training and certification.rnBlack Belt Responsibilities and Requirements:rnWhile the Green Belts are considered as worker bees, Black Belts are the leaders. Six Sigma Black Belt certified professionals serve as agents of change within an organization. They are responsible for leading a team of Green Belts and assign them their roles and responsibilities. They direct and supervise the work, activities, and the data collected by the Green Belts. They implement the changes and strategies to eliminate the defects to improve the overall quality of the end results or products.rnA candidate does not have to possess Six Sigma Green Belt certification to earn Six Sigma Black Belt certification. That said, Green Belt project completion is not required as most of the participants take their first project as a Black Belt project. Black Belt candidates must demonstrate an understanding of Six Sigma philosophies, principles, related systems, and tools.