Category: assumptions
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Predicting reports of new faults by counting past reports
One of the many difficulties of estimating the probability of a previously unseen fault being reported is lack of information on the amount of time spent using the application; the more time spent, the more likely a previously unseen/seen fault will be experienced. Formal prerelease testing is one of the few situations where running time…
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Extracting information from duplicate fault reports
Duplicate fault reports (that is, reports whose cause is the same underlying coding mistake) are an underused source of information. I sometimes email the authors of a paper analysing fault data asking for information about duplicates. Duplicate information is rarely available, because the authors don’t bother to record it. If a program’s coding mistakes are…