The input variables listed in the DOE Builder are imported from the base study. When selected in the DOE Builder, these parameters appear in the tree in the Study tasks pane.
The input variables change depending upon the process settings you have selected. The values in the process settings are then imported into the DOE Builder, where they are listed as the Middle Value. The DOE Builder assigns a range around the Middle Value, which you can change to make it wider or narrower. Profile data is also imported into the DOE Builder from the Process Settings. This data can only be changed in the process settings. However, Xmax, Xmin, Ymax and Ymin can all be edited in the DOE Builder.
The Input Variables tree may have as many as three sections, depending on the variables in the study.