From a unit testing perspective, the system under test represents all of the classes in a test that are not predefined pieces of code like stubs or even mocks.

System under test (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 which, …

What is System Under Test (SUT)? System under test (SUT) refers to a system that is being validated by the testers. The terminology is also known as application under test. The System …

Apr 8, 2025 · The System Under Test is the specific object, function, or component that you’re testing. It’s the “actor” in your test scene — the one doing something, and the one you’re …

Jun 26, 2025 · SUT stands for System Under Test. It's a term commonly used in software testing and quality assurance to refer to the specific system, application, or component that is …

Jul 14, 2016 · The idea behind the concept of system under test is to test the system/application under various scenarios. The requirement specifications are mapped with the test cases or …

The System Under Test (SUT) is a term used in software testing to describe the system that is being tested. This could be a single module, a whole application, or even an entire network of …

It is short for "whatever thing we are testing" and is always defined from the perspective of the test.

A System Under Test (SUT) is any concrete system or implementation artifact—software, hardware, or system component—that is the explicit target of a testing activity.

A System Under Test (SUT) is a complete system that comprises hardware, software, and connec-tivity components; that is the object or target of a performance measurement test or …