What is an “Error”,”Bug”,”Fault” and “Failure”?

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What is an “Error”,”Bug”,”Fault” and “Failure”?

A person makes an Error
That creates a fault in software
That can cause a failure in operation

Error : An error is a human action that produces the incorrect result that results in a fault.
Bug : The presence of error at the time of execution of the software.
Fault : State of software caused by an error.
Failure : Deviation of the software from its expected result. It is an event.


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