In this paper, a full featured MATLAB framework for Measurement System Analysis, fully compliant with the ISO 5725 Repeatability and Reproducibility (R&R) assessment is presented. While preserving the operations prescribed in the ISO standard, the software presents distinct improvements. First of all, all computations are made using exact closed-form formulae (instead of statistical tables) allowing a consistent analysis without limitations on the number of participating laboratories and measurements, and using custom significance levels of statistical tests. Second, a double threshold decision system for each test step has been implemented, helping the statistician to decide on the elimination of outliers/stragglers. Third, ANOVA analysis has been included. The software therefore, besides producing quickly and efficiently all the graphical and numerical results required in an inter-laboratory experiment, provide guidelines for properly updating the ISO 5725 standard.

A fully customizable MATLAB Framework for MSA based on ISO 5725 Standard

D'AUCELLI, Giuseppe Maria;GIAQUINTO, Nicola;SAVINO, Mario
2017-01-01

Abstract

In this paper, a full featured MATLAB framework for Measurement System Analysis, fully compliant with the ISO 5725 Repeatability and Reproducibility (R&R) assessment is presented. While preserving the operations prescribed in the ISO standard, the software presents distinct improvements. First of all, all computations are made using exact closed-form formulae (instead of statistical tables) allowing a consistent analysis without limitations on the number of participating laboratories and measurements, and using custom significance levels of statistical tests. Second, a double threshold decision system for each test step has been implemented, helping the statistician to decide on the elimination of outliers/stragglers. Third, ANOVA analysis has been included. The software therefore, besides producing quickly and efficiently all the graphical and numerical results required in an inter-laboratory experiment, provide guidelines for properly updating the ISO 5725 standard.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/107813
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