Quality and Reliability Methods - SAS

126 Assess Measurement Systems Chapter 8
Example of Measurement Systems Analysis
The EMP Results report computes several statistics to help you assess and classify your measurement system.
The Intraclass Correlation indicates the proportion of the total variation that you can attribute to the part.
From the EMP Results report, you can conclude the following:
• The Intraclass Correlation values are close to 1, indicating that most of the variation is coming from the
part instead of the measurement system.
• The classification is First Class, meaning that the strength of the process signal is weakened by less than
10%.
• There is at least a 99% chance of detecting a warning using Test 1 only.
• There is 100% chance of detecting a warning using Tests 1-4.
Note: For more information about tests and detecting process shifts, see “Shift Detection Profiler” on
page 132.
There is no interaction between operators and parts, and there is very little variation in your measurements
(the classification is First Class). Therefore, you conclude that the measurement system is performing
quite well.
Launch the Measurement Systems Analysis Platform
Launch the Measurement Systems Analysis platform by selecting Analyze > Quality and Process >
Measurement Systems Analysis.
Figure 8.5 The Measurement Systems Analysis Window
The Measurement Systems Analysis window contains the following features:
Select Columns
lists all of the variables in your current data table. Move a selected column into a role.