Chapter 2 – Testing Throughout the SDLC
Compatibility Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Testing to evaluate the ability of a software product to exchange information with other components or systems and to function correctly in shared environments.
In simple words
Verify the app plays nicely with other browsers, OSes or apps.
Exam tip
Compatibility covers co-existence and interoperability.
Related terms
- Portability TestingCheck the app works on other browsers, OSes or hardware.
- Interoperability TestingCheck two systems can actually talk to each other and understand the data.
- Non-Functional TestingHow fast, how secure, how usable, how reliable — the ‘qualities’ around the feature, not the feature itself.
Practice this term in the ISTQB Mock Test
40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
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