Chapter 2 – Testing Throughout the SDLC
Stress Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A type of performance testing that evaluates a system’s behavior at or beyond the limits of its anticipated workload.
In simple words
Push the system past its expected load to find the breaking point.
Exam tip
Stress tests find the failure mode; load tests confirm normal capacity.
Related terms
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