debugging and testing

Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or a piece of electronic hardware thus making it behave as expected. Debugging tends to be harder when various subsystems are tightly coupled, as changes in one may cause bugs to emerge in another.
Contents[hide]
1 Origin
2 Tools
3 Basic steps
3.1 Recognize a bug exists
3.2 Isolate source of bug
3.3 Identify cause of bug
3.4 Determine fix for bug
3.5 Fix and test
4 Steps to reduce debugging
4.1 The correct mindset
4.2 Start at the source
4.3 Treat user input with suspicion
4.4 Use of log files
4.5 Test suites
4.6 Change one thing at a time
4.7 Back out changes that have no effect
4.8 Think of similar situations
5 See also
6 References
7 External links

more




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