Chapter 2 – Testing Throughout the SDLC
Acceptance Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A test level that focuses on determining whether to accept the system. Typically performed by users and/or customers, but may involve other stakeholders.
In simple words
The ‘go / no-go’ testing that confirms the system meets business needs and is ready to be released to real users.
Exam tip
Know the CTFL v4.0 forms of acceptance testing: UAT, operational acceptance, contractual/regulatory, and alpha/beta.
Related terms
- 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.
- ValidationAre we building the right product? — checking that the system actually meets user needs and intended use.
Practice this term in the ISTQB Mock Test
40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
Practice in Mock Test