ISO Plot Training arms Green Belts with a simple but effective Measurement System Analysis technique.
ISO Plot is borrowed from the Shainin RedX tool kit. It has many similarities to Gage R&R in that multiple operators are measuring the same parts. However, in this case only 2 operators measuring at least 12 parts once each. Then, simply:
|Hand-draw a scatter plot of the points|
|Make observations about the pattern|
|Do some simple algebra|
|Decide whether the measurement system can be used|