Articles by Ray Harkins

The group of dial indicator gauge on the table with lighting effect.
Measurement

Making Sense of Gage R&R Analysis

Ultimately, the goal is not just to evaluate the gage but to ensure that capability studies, SPC charts, and process improvement projects are built on reliable data.
Ray Harkins
October 24, 2025

Measurement Systems Analysis (MSA) evaluates measurement systems in manufacturing, focusing on errors like repeatability (variability from the same operator) and reproducibility (variability from different operators). Gage R&R Analysis, using the A&R or ANOVA methods, quantifies these errors to ensure manufacturing processes meet customer requirements.


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