Chapter 3 – Static Testing
Maintainability – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
The degree of effectiveness and efficiency with which a product can be modified.
In simple words
How easily developers can change, fix or extend the software later.
Exam tip
Maintainability is a non-functional quality — improved by refactoring, coding standards and static analysis.
Related terms
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