What is the difference between bug,defect, error, failulre,
fault & mistake?
Answer Posted / prashant tangle
Error: it is human mistake, probably you can say that
developer has done a mistake i.e. error in code.
Fault: It is unexpected result due to above mistake, you
can say that due above error in code there is fault at the
system or application.
Failure: It can occurs due to fault(s) at system, say that
due to multiple faults system fails.
Defect: It is purely finding a fault in the system, it can
be a bug.
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