What is a primary outcome expected from user acceptance testing (UAT)?

User Acceptance Testing (UAT) focuses specifically on ensuring that the system or application meets the expectations and needs of the end-users. During UAT, users engage with the system in a controlled environment to verify that it functions as intended in real-world scenarios. The primary outcome of this phase is for users to confirm that the system's functionality aligns with the requirements set forth at the beginning of the project. This validation is crucial because it represents the final opportunity for users to provide feedback before the system goes live, ensuring that it meets their needs effectively.

This outcome is distinct from the roles and responsibilities of developers, stakeholders, and testers in other phases of the development process. While developers might be focused on technical challenges and engineers might seek to identify security issues, UAT centers around user satisfaction and the practical application of the system's features. Therefore, the correct choice emphasizes the critical importance of user involvement and validation in the successful implementation of information technology systems.