Detailed Analysis of GRR Study Results and their Visualization

Abstract The paper presents the possibilities of analyzing the measurement system repeatability and reproducibility (GRR) analysis results in more detail and their visualization. Based on real data, the influence of appraisers’ behavior on GRR analysis results is evaluated. The measured data obtained in the GRR study by three operators are analyzed in more detail for cases involving only two operators. Comparison of the behavior of individual operators is performed using Gaussian curves, which allow to evaluate graphically the repeatability of individual operators and the reproducibility of measurement system. This approach makes possible to visualize the GRR analysis results with regard to behavior of individual operators. Obtained results make possible to improve the interpretation of GRR analysis results and are useful for measurement system improvement.