Causes Of Software Defects – ISTQB
Causes Of Software Defects
Error
Humans make a mistake in the code. Development of a document specification.
Defect
A problem caused by an error.
Fault
A failure of the system or component caused by a defect.
Failure
Failures don’t only happen due to defects, but also environmental conditions, hardware problems, etc.
All defects start with a human error (for example a typo, misunderstanding, lack of planning, capability, etc.) The tester’s job is to expose the defect by causing a failure before the software gets to production.
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