Generally speaking, the Green Belt is a part-time job. As a member of the project core team, it can actively participate in a large-scale black belt project and provide professional advice for the project.

Black belts are generally full-time. They need to establish, guide and lead an inter-departmental improvement team, provide project priorities for management, write project charter and start-up suggestions and guidance, coach business experts in green belts, yellow belts and various fields, use six suitable tools and methods, learn to combine projects with business objectives, provide project management, and coordinate and guide the team.

Sigma (σ, σ) is a Greek letter and a statistical unit used to measure the standard error of a total. After the extension of its meaning, it means that the bad rate of general enterprises is about 3 to 4 horses, which is equivalent to 6,265,438+00 mistakes in every one million opportunities. If the enterprise continues to pursue quality improvement and reaches the level of 6 sigma, the performance will almost perfectly meet the requirements of customers, and only 3.4 defects can be found out in one million opportunities.

Six black belts are six experts in an enterprise, and six black belts can continue to complete projects for the enterprise and obtain breakthrough financial benefits. The Six Sigma Black Belt has the ability of organization, motivation, project management and mathematical statistics diagnosis, and it is an expert in lean six Sigma. Six Sigma Black Belt provides necessary management tools, software toolkits and operation skills; Six Sigma Black Belt provides consulting services for the implementation of lean six Sigma projects.