Advanced Level – Cross-Cutting
Efficiency Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Testing to determine the efficiency of a software product, i.e. the capability to provide appropriate performance relative to the amount of resources used under stated conditions.
In simple words
Test whether the system delivers its output using a reasonable amount of resources (CPU, memory, network).
Exam tip
In ISO 25010 efficiency was renamed 'performance efficiency'.
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