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Define, Measure, Analyze, Improve, Control. It is the data-driven improvement cycle used for projects aimed at improving existing processes.
Green Belts. They lead smaller improvement projects while working part-time on Six Sigma, typically under the guidance of a Black Belt.
Also called an Ishikawa or cause-and-effect diagram, it helps teams brainstorm and categorize potential root causes of a problem, often grouped into the 6 Ms: Man, Machine, Material, Method, Measurement, and Mother Nature.
A p-chart monitors the proportion of defective items in subgroups of varying size, tracking attribute (pass/fail) data over time.
Cp = (USL - LSL) / (6 * standard deviation). It measures the potential capability of a process by comparing specification width to process spread, ignoring centering.