Lecture notes on empirical software engineering by Natalia Juristo, Ana M Moreno

By Natalia Juristo, Ana M Moreno

Empirical verification of information is likely one of the foundations for constructing any self-discipline. so far as software program development is anxious, the empirically established wisdom isn't in simple terms sparse but additionally no longer very broadly disseminated between builders and researchers. This e-book goals to unfold the assumption of the significance of empirical wisdom in software program improvement from a hugely sensible standpoint. It has ambitions: (1) outline the physique of empirically verified wisdom in software program improvement so that it will recommend practitioners on what tools or concepts were empirically analysed and what the consequences have been; (2) as empirical exams have generally been performed by way of universities or study centres, suggest innovations appropriate by means of to envision at the software program improvement applied sciences they use.

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Intermediate cases, it is preferable to use abs/ror - Pending field study. mutation, because, although it generates more cases (from 50 to 100 times more), it raises effectiveness by 7 points. If time is not a critical factor, it is preferable to use standard mutation. - Compare the different mutation variants with each other - Use another metric type for effectiveness, as the number of mutants killed by a technique is only useful for relative comparisons between mutation techniques Table 18. Conclusions for intrafamily studies (2/2).

One noteworthy result, however, is that the author does not find a significant difference as regards the number of faults detected by both technique types. However, the author indicates that different methods detect some fault types better than others (although this study is not performed statistically). Myers also studies fault detection efficiency combining the results of two different people. , 1997) also address this factor. The conclusions are similar in the two studies, that is, more faults are detected combining the faults found by two people.

For this purpose, the authors study 10 small programs, finding that the mutation techniques behave similarly to all-uses. , 1994) (Frankl & Iakounenko, 1998) Number of test cases generated - All uses is a better technique than all-edges and random by the technique itself - All-edges is better than random because it generates more test cases - All-edges and all-dus generate approx. the same number of test cases - To achieve the same effectiveness as alledges and all-dus, random has to generate from 50% to 160% more test cases - No.

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