2. Measurement Process Characterization 2.4. Gauge R & R studies 2.4.1. What are the important issues?
	The basic issue for the study is the behavior of gauges in a particular environment with respect to: Repeatability Reproducibility Stability Bias
Strategy	The strategy is to conduct and analyze a study that examines the behavior of similar gauges to see if: They exhibit different levels of precision; Instruments in the same environment agree with each other; Operators in the same environment agree with each other; Responses of individual gauges are affected by configuration or geometry changes or changes in set-up procedures.
Other goals	Other goals are to: Test the resolution of instruments Test the gauges for linearity Estimate differences among gauges (bias) Estimate differences caused by geometries, configurations Estimate operator biases Incorporate the findings in an uncertainty budget