Final answer:
User Acceptance Testing (UAT) is the process used to verify that a new IT system is functional on an integrated basis and meets the end-users' needs.
Step-by-step explanation:
The tests that describe the verification of a new IT system to ensure it is functional on an integrated basis is called User Acceptance Testing (UAT). UAT is a phase of software development in which the software is tested in the 'real world' by the intended audience. This training allows them to ensure that the system meets their business needs and is user-friendly before being fully deployed and used operationally.