Failure

Deviation of the component or system from its expected delivery, service or result.

Present in sylabi

Advanced Test Analyst 2012 Advanced Technical Test Analyst 2012 Advanced Test Manager 2012 Expert Test Management 2011 Foundation Extension - Agile Tester 2014 Expert Improving the Test Process 2011 Advanced Security Tester 2016 Foundation Extension - Usability 2018
Failover Testing
Failure Mode

Frequently asked questions

What is the difference between an error, a fault, and a failure?

An error is a human action that produces an incorrect result. A fault (defect) is a flaw in a component or system that can cause it to fail. A failure is a deviation of the component or system from its expected delivery, service or result. Errors may lead to faults in the software, and faults may cause failures when the code executes.

How to cite

International Software Testing Qualifications Board. (2026). failure. ISTQB Glossary. Retrieved October 19, 2026, from https://istqb-glossary.page/failure/.

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