#REDIRECT [[System Under Test]] {{R from other capitalisation}}
{{unreferenced|date=April 2007}}
'''System Under Test''' (shortened as '''SUT''') refers to a [[system]] that is being tested for correct operation. The term is used mostly in [[software testing]].
A special case of a [[software system]] is an [[application software|application]] which, when tested, is called an '''Application Under Test'''.
The term SUT means also a stage of maturity of the software, because a system test is the successor of integration test in the testing cycle.
