The purpose of user acceptance testing (UAT) is to validate the effectiveness of a new web-based system, including features and functionality. The testers need to be highly motivated, think critically, and teach others. The users should also be representative of the overall target audience, which should include a mix of people from various departments and levels. In a UAT, the testers should evaluate the functional requirements and provide valuable feedback about the usability of the software.
One of the most important user acceptance testing best practices in communicating the requirements to the development team as early as possible. If the task is complex, the team should be involved from the requirements analysis phase and be notified about changes in time. The team should be highly motivated and have ample time for the testing process. This is especially important when multiple teams are working on the same project. When the development process is still ongoing, the test team may not have the time to participate in all phases.