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.
Six Sigma Belts loosely parallel American martial arts schools: Lighter belts are novices, black belts are experts.
Gage Repeatability and Reproducibility is commonly referred to as Gage R&R. It’s a method is to look at variability in our measurements.
The EWMA – Exponentially Weighted Moving Average chart is used to monitor variables that make use of the entire history of a given output.
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.