Monday 22 June 2015
Difference Between Software Faults and Software Failures
Before we move on to the differences let us discuss what faults and failures actually are....
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| Faults vs Failures |
FAULTS:
A software fault is a programming error that is not figured out or we can say that software fault is a hidden programming error.It may cause a software failure.
FAILURES:
Deviation of software's performance or behavior from expectations is software failure.These may be manifested due to faults in software.
So now let us discuss Difference between software faults and failures
FAULTS
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FAILURES
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1. Software fault is a hidden programming
error.
|
1. Software failure is deviation of
software functionality from user expectation.
|
2. It is a software defect that may cause/causes a failure
|
2. It is inability of software to perform its
required functions.
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3. Manifested as an error in software.
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3. Manifested as a fault in software.
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4. An error becomes a fault when it is written in
any of the developed software products.
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4. Failure occurs when the software does not behave
as it is desired to, which reveals a fault in the software.
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5. It occurs as a result of errors, bugs, mistakes.
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5. A
fault becomes a failure only when the exact computation conditions are met,
and the faulty portion of the code is executed on the CPU.
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6. It may be called buggy.
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6. It may be called defective.
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7. Could be an accidental condition which was never
planned for.
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7. It is fault in software, when the conditions for the bug get
realized (which may never happen at all).
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8. It is passive in nature.
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8. When fault becomes active, failure occurs.
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9. It is error not detected by developer
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9. It is defect visible to end-user.
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10. A fault is a crash and may be caused by
dividing by 0, accessing bad memory, reusing a deleted pointer (address),
etc.
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10. A failure may be caused due to software as well
as hardware problems such as change in
compilers, platforms etc.
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