A **measurement systems analysis** (**MSA**) is a specially designed experiment that seeks to identify the components of variation in the measurement.

Just as processes that produce a product may vary, the process of obtaining measurements and data may have variation and produce defects. A measurement systems analysis evaluates the test method, measuring instruments, and the entire process of obtaining measurements to ensure the integrity of data used for analysis (usually quality analysis) and to understand the implications of measurement error for decisions made about a product or process. MSA is an important element of Six Sigma methodology and of other quality management systems.

MSA analyzes the collection of equipment, operations, procedures, software and personnel that affects the assignment of a number to a measurement characteristic.

A measurement systems analysis considers the following:

- Selecting the correct measurement and approach
- Assessing the measuring device
- Assessing procedures and operators
- Assessing any measurement interactions
- Calculating the measurement uncertainty of individual measurement devices and/or measurement systems

Common tools and techniques of measurement systems analysis include: calibration studies, fixed effect ANOVA, components of variance, attribute gage study, gage R&R, ANOVA gage R&R, destructive testing analysis and others. The tool selected is usually determined by characteristics of the measurement system itself.

Read more about Measurement Systems Analysis: Factors Affecting Measurement Systems, ASTM, ASME, Auto Industry, Goals

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### Famous quotes containing the words analysis, measurement and/or systems:

“Ask anyone committed to Marxist *analysis* how many angels on the head of a pin, and you will be asked in return to never mind the angels, tell me who controls the production of pins.”

—Joan Didion (b. 1934)

“That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the *measurement* of future events and they never are, if you have high standards of accuracy.”

—John Dos Passos (1896–1970)

“People stress the violence. That’s the smallest part of it. Football is brutal only from a distance. In the middle of it there’s a calm, a tranquility. The players accept pain. There’s a sense of order even at the end of a running play with bodies stewn everywhere. When the *systems* interlock, there’s a satisfaction to the game that can’t be duplicated. There’s a harmony.”

—Don Delillo (b. 1926)