The last test of new software, done by the people who will use it, before it goes live.
Like a test drive before buying the car: the people who will drive it every day confirm it does what was promised.
A clinic was moving to a new booking system. During acceptance testing, front-desk staff found it could not handle double bookings, and the fix was made before go-live.
Projects covers rollouts and migrations, including the acceptance steps before a switch.
Who should do the acceptance testing?
The people who will use the software every day, not only the manager who bought it.
Every WILDCARD card exists to solve one named problem. Find yours.