Chapter 3 – Static Testing
Error – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A human action that produces an incorrect result.
In simple words
The mistake a person made — the wrong requirement, wrong design, wrong line of code.
Exam tip
Error → Defect → Failure. Error causes defect, defect causes failure.
Related terms
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