Advanced – Non-Functional Testing
Reusability – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
The degree to which an asset can be used in more than one system, or in building other assets.
In simple words
How easily a component can be used again elsewhere.
Exam tip
A maintainability sub-characteristic in ISO 25010.
Related terms
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