...
A Test Definition is able to analyze Test Results and come up with the conclusion whether the test run succeeded or failed. This feature is based on Qualifiers. A test definition can contain a number of qualifiers and if all qualifiers, defined at the test definition, return true, then the test definition run is considered successful. If Qualifier is not setup, Test Definition result would be considered as Success.
Click the Next button in order to configure Qualifiers for the test definition.
...
The edit screen contains all attributes of the test set and displays Test Definitions, Qualifiers and Statistics data on separate tabs. The Test Definitions tab shows all test definitions related to this test set. The tab allows you to create and edit test definitions in the same way as it is described in the Test Definitions section. If Qualifier is not setup, Test Set result would be considered as Success.
Click the Save button to save the changes to the test set or click the Back button to cancel the changes and return to the list of test sets defined for the project.
...