QA Club Kiev

Difference between error, failure, fault, bug, defect.

Error/mistake: A human action that produces an incorrect result.

Fault/defect /bug: A flaw in a component or system that can cause the component or system to fail to Automated Teller Machine perform its required function, e.g. an incorrect statement or data definition. A defect, if encountered during execution, may cause a failure of the component or system.

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