Graphically analyzes all of your observations by operator and part number. Use this chart to quickly assess differences in measurements between different operators and parts. A stable process would display a random scattering of points; an operator or part effect would display a pattern in the plot.
|When to Use||Purpose|
|Start of project||Verify different operators can measure the same part repeatedly, with no differences between operators or within the same operator. You must verify the measurements of inputs and outputs.|
Continuous Y and two X's (Part and, typically, Operator). Gage output must be continuous and sample parts must be measured by multiple operators.