If the user finds deviation from the requirement is it
called Fault, Error, Defect or Failure

Answer Posted / chopra

Lets call off this psudoism and simplify things.

Deviation from a requirment is always a Defect or a bug no
matter who sees it ( tester, developer, manager or client),
the reason that caused that defect is due a failure or
fault or error somewhere. Lets take an example -

If I have a fever say about 102 degrees celsius.

Requirment of my body says - temp should be 98.6 so its a
devaition from the requirement and thus called a defect.
Now this defect is caused due to several reasons - viral
ifection, fungal infection, malfunctioning of any other
part - this is actually an error or failure- which would be
cured by the doctor and due to this by defect would be get
removed automatically.

To sum up Bug or defect is nothing but a symptom and thing
that is the cause of this symptom is nothing but a failure,
fault or error.

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