Saturday, July 3, 2010

Difference between Error, Defect and Failure

Difference between error, defect and failure

Error: Error is also called mistake. It is a human action that produces an incorrect result.

Defect: Defect is also called as Bug, Fault. It is a flaw in a component or system that can cause the component or system to fail to 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.

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