Chapter 6 – Test Tools
A/B Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An experiment comparing two variants of a feature to determine which performs better against a defined metric.
In simple words
Showing version A to some users and B to others to see which wins.
Exam tip
A/B testing is a product analytics technique, not defect detection — but QA often validates the variant delivery works correctly.
Related terms
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40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
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