It will be useful when there will possibility to add conditions when particular test case is performed. We can use it eg. to workflow.

Example:
check if(Variable='Approved', true, false,120,3) --> if Variables = Approved then this test case is performed, in other ways wait 120 seconds and check the conditions ... In this case there should be 3 attempts. After 3 attempts RSAT should go the next test case.