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August 2015  |  Craftsman’s Cribsheet #35


An improperly defined gage repeatability and reproducibility (R&R) program can drain a company of resources and reduce the effectiveness of the shop. ISO/TS16949:2009 states that variation studies, “shall apply to measurement systems referenced in the control plan.” The purpose of analyzing your measurement system is to understand the sources of variation that can influence the results produced by the system. Here is a suggested approach to applying logic to this requirement.