User Acceptance Testing (UAT) is a process of verifying that a software system meets the requirements of the end user. It is the last phase of the software testing process and involves the user testing the system to ensure it meets their expectations and requirements. UAT is typically conducted by the
From Wikipedia
In engineering and its various subdisciplines, acceptance testing is a test conducted to determine if the requirements of a specification or contract are met. It may involve chemical tests, physical tests, or performance tests.