In the UAT phase, what is it all about and what should be checked during user acceptance testing?

User Acceptance Testing (UAT) is the final testing phase where the end users or clients validate that the system meets their business requirements and is ready for production. During UAT, testers verify that all functional and non‑functional requirements are satisfied, that the system behaves as expected in real‑world scenarios, and that any defects identified earlier have been resolved. Key activities include executing test cases written from user stories, checking data integrity, validating workflows, and ensuring the user interface is intuitive. UAT also involves gathering user feedback, documenting any issues, and obtaining formal sign‑off from stakeholders before the system is released.