A Six Sigma Black Belt is usually the Six Sigma Project Manager, and to succeed they must follow strong project management techniques.
A Green Belt knows a fair amount about Six Sigma methodology, and can support a Black Belt in a major project or take on minor projects.
Gage Repeatability and Reproducibility is commonly referred to as Gage R&R. It’s a method is to look at variability in our measurements.
Cumulative Sum Chart (CUSUM) is a type of control chart used to detect the deviation of the values or subgroup mean from the target value.
An Individual moving range chart (I-MR Chart) also called X-MR is used when data is continuous and not collected in subgroups (n=1).