Advanced Level – Cross-Cutting
Visual Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Testing that verifies the visual appearance of an application matches expected baselines, typically using screenshot comparison and AI-powered image diffing.
In simple words
Compare screenshots against baselines to catch UI regressions that functional tests miss.
Exam tip
Applitools and Percy pioneered AI-driven visual testing; baseline management is the hard part.
Related terms
- AI-Based TestingUsing AI/ML in the test process itself — auto-generating tests, self-healing selectors, predicting risky areas.
- Regression TestingAfter any change — bug fix, new feature, config update — you re-run existing tests to make sure nothing that used to work has broken.
- Cross-Browser TestingRun the app across Chrome, Firefox, Safari, Edge and old versions to confirm consistent behavior.
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