System Under Test (SUT)

The System Under Test (SUT) refers to the specific software or hardware product being evaluated or tested. It is the main focus of the testing process to ensure it functions correctly, meets requirements, and performs reliably. During testing, the SUT is examined for bugs, errors, or performance issues. This could be an application, device, or system component. The goal is to identify problems so they can be fixed before the system is used by end-users, ensuring quality and dependability.