During which phase is the primary focus on confirming that the system meets user needs?

The user acceptance phase is critical because it is specifically designed to ensure that the system being evaluated meets the needs and requirements of its intended users. This phase involves real users testing the system in a controlled environment, providing feedback on its functionality, usability, and overall satisfaction.

During this stage, stakeholders validate whether the solution aligns with business objectives and user expectations. It's an opportunity to identify any last-minute adjustments or enhancements needed before the system goes live. The feedback gathered in this phase is essential for confirming that the system is ready for full deployment and will effectively serve its intended purpose in the real world.

Other phases, such as the design phase or testing phase, do involve aspects of user input and verification, but the user acceptance phase is specifically centered around validating the solution from the user's perspective. This makes it the most appropriate choice for confirming that the system meets user needs before final rollout.