ECONOMICS
L07- Integrating quality activities in the project life cycle p2.pptx

Defect origin distribution defect origins the phase

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Defect origin distribution Defect origins (the phase in which defects were introduced) are distribu ted throughout the development pro cess, from the project’s initiation to i ts completion
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Defect removal effectiveness It is assumed that any quality assurance activity filters (screens) a certain percentage of existing d efects. It should be noted that in most cases, The percentage of removed defects is somewhat lower than the percentage of detected defects as s ome corrections are ineffective or inadequate. The remaining defects, those undetected and uncorrected, are passed to successive developme nt phases.
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Defect removal effectiveness
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Cost of defect removal
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The model POD = Phase Originated Defects (from Table 7.3) PD = Passed Defects (from former phase or former quality assurance activity) FE RD CDR TRC
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Example 1 standard QA plan the model applies to a standard quality assurance plan that is composed of six quality assurance activities as shown in Table 7.6.
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Example 1 standard QA plan(cont’) Continue next slide
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Example 1 standard QA plan(cont’)
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Example 2 comprehensive QA plan
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Example 2 comprehensive QA plan(cont’) Continue next slide
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Example 2 comprehensive QA plan(cont’)
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Comparison of the standard and comprehensive quality assurance plans
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Reference Chapter 7: Daniel Galin. SOFTWARE QUALITY ASSURANCE From theory to implementation. Pearson Educ ation Limited,2004.
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  • Fall '17
  • mr.nam
  • Pearson Educ

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