Advanced Level – Cross-Cutting
Concurrency Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Testing to determine how the occurrence of two or more activities within the same interval of time is handled by the component or system.
In simple words
Test that the system behaves correctly when many things happen at the exact same time.
Exam tip
Race conditions and deadlocks live here — often reproduced only under load.
Related terms
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