When creating Hierarchical tests, the Analyst begins by specifying the tests to be inherited and eXpress automatically determines upper-level coverage & stimuli, and lists the possible measurement locations for that test. After the test(s) have been created, the Analyst selects possible test locations and uses various means to modify the upper-level coverage and interference until it accurately represents the diagnostic conclusions that can be drawn when that test passes and fails.
How To Create Hierarchical Tests
1
If necessary, create a test set to contain the new tests. Double-click on the destination test set to enter the Test Set Editing Mode
2
In the main design window, highlight the assemblies containing the test(s) to be inherited.
Select the tests to be inherited on the Create New Hierarchical Test(s) dialog and click on the "OK" button.
Next, the Analyst must select the upper-level location(s) at which the test can be performed (Hierarchical tests with no selected test locations are considered to be undefined—the eXpress Error Checker will generate an error message indicating this). Finally, the Analyst can mark elements in the upper-level coverage (which is separately calculated for each selected test location) as being non-detectable by that test.
