Abstract
ABSTRACT Purpose: This paper reviews popular measurement system indices and proposes a procedure for assessing a measurement system using two parameters with intraclass correlation and a factor for process capability. Methods: Gage Repeatability and Reproducibility(GR&R), precision-to-tolerance ratio(PTR), number of dis-tinct categories, producer’s and consumer’s risks are employed to assess the measurement capabilities and discuss the relationships between measurement system metrics.Results: Two-dimensional plot by two parameters is presented to assess adequacy of the measurement system and process capability. A numerical example and previously studied case study are provided for illustration.Conclusion: The procedure proposed in this paper using two-dimension parameters provides a valuable proce-dure and helpful guidelines to quality and production managers in assessing the capabilities of a measurement system and choosing the needed actions to be the most benefit.Key Words: Discrimination Error, Gage Repeatability and Reproducibility, Measurement System, Misclassification Error, Precision-to-Tolerance Ratio
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