What is User Acceptance Testing (UAT)?

User Acceptance Testing (UAT) is a critical phase in the software development lifecycle that focuses on verifying whether the software meets the business requirements outlined at the outset of the project. It typically occurs after the software has gone through various stages of development and has passed earlier testing phases, such as unit testing and system testing.

During UAT, actual end-users test the software to ensure it functions as intended in real-world scenarios. This process helps to confirm that the software meets the specific needs and expectations of the users, allowing them to perform their tasks effectively. The success of UAT often determines whether the software is ready for final deployment, making it a vital step before launching a product to the public.

Understanding this concept is important for developers and project stakeholders, as successful UAT can lead to increased customer satisfaction and reduced risk of post-launch issues.