Chapter 6 – Test Tools
A/B Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A method of comparing two versions of a feature or page against each other to determine which one performs better.
In simple words
Show version A to some users and version B to others, then compare metrics.
Exam tip
A/B testing is a shift-right, experiment-driven form of production testing.
Related terms
- Shift-Right TestingKeep testing after release — observe real users, run experiments, catch issues in production safely.
- Feature FlagA switch in config that hides or shows a feature to users.
- Testing in ProductionPush code to real users behind flags, watch metrics and roll back fast if something breaks.
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