Chapter 2 – Testing Throughout the SDLC
User Acceptance Testing (UAT) – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Acceptance testing performed by end users to validate that the system meets their business needs before go-live.
In simple words
The final round of testing done by real users before launch.
Exam tip
UAT confirms fitness for purpose from the user’s viewpoint, not defect-finding.
Related terms
- Acceptance TestingThe ‘go / no-go’ testing that confirms the system meets business needs and is ready to be released to real users.
- Alpha TestingEarly real-world testing done on the developer’s premises, usually by a separate QA team or invited customers, before shipping.
- Beta TestingReal users try the product in their own environment before the general launch, and their feedback drives last-minute fixes.
Practice this term in the ISTQB Mock Test
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