Emphasizing Software Test Process Improvement

On average, programmers create six to eight defects in every 100 lines of code (LOC) [11. They create 12 to 20 defects per 100 LOC if the code is not structured and is poorly documented. These defect rates improve to two to three defects per 100 LOC if the code is structured and documented. However, the rates only improve to one to 1.5 defects per 100 LOC for subsystem, programs, or modules after typical unit testing. We certainly need techniques to improve defect detection during coding and unit testing....

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