Repeatability & Reproducibility Analysis - Generate Design Tab

Select the Generate design tab of the Repeatability & Reproducibility Analysis dialog box to access the options described here.

Number of operators

Specify the number of different operators in the design. These are the different individuals who are taking the measurements. Comparing operators will later allow you to determine the reproducibility of the measurements. For further details, refer to the description of this method in the Introductory Overview.

Number of parts

Specify the number of different parts that are measured in the study.

Number of trials

Specify the number of different trials in the design. In order to estimate the repeatability of the measurements, you need to include at least 2 trials; that is, allow each operator to measure each part at least twice. However, you may specify only a single-trial experiment; in that case, repeatability and reproducibility cannot be estimated separately. These types of "abridged" studies are often useful in order to perform periodic checks on the precision of the measurement system.