From a report, to save specification limits to the data table as a column property, select Save > Spec Limits from the red triangle menu next to the name of the analysis variable. When you repeat the capability analysis, the saved specification limits are automatically retrieved.
To save the specification limits and distribution for a capability analysis based on a fitted distribution, select Save Spec Limits from the red triangle menu for the fitted distribution. This option saves a column property for the specification limits and a second one for the distribution that was fit.
If a column does not contain specification limits, create the Capability Analysis report by selecting Capability Analysis from the red triangle menu and setting the specification limits.
Figure 2.12 Capability Analysis Window
<Distribution type>
Sigma Quality is frequently used in Six Sigma methods, and is also referred to as the process sigma. For more information about the calculation of the Sigma Quality values, see Sigma Quality Statistics.
(Available only in Capability Analysis reports that are not inside a Fitted <distribution> report.) Shows the values (represented by Index) of the Benchmark Z statistics. According to the AIAG Statistical Process Control manual, Z represents the number of standard deviation units from the process average to a value of interest, such as an engineering specification. When used in capability assessment, Z USL is the distance to the upper specification limit and Z LSL is the distance to the lower specification limit. For more information about the calculation of the Benchmark Z values, see Benchmark Z Statistics.
Related Information 
For the Process Capability platform, see Process Capability in the Quality and Process Methods book.

Help created on 7/12/2018