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Effectiveness of Program Inspections

publish date: 2026/06/14 04:09:33.319327 UTC

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Research and industry studies have reported on the defect-detection effectiveness of program inspections. Which of the following findings are supported by research cited in the literature? Select all that apply.

Inspections have been shown to be more effective for defect discovery than program testing

Fagan reported that more than 60% of errors can be detected using informal program inspections

Inspections can replace software testing entirely in all project types

Inspections guarantee 100% defect detection when conducted formally

The Cleanroom process claims more than 90% of defects can be discovered through inspections

Correct Answer

(1) Fagan reported that more than 60% of errors can be detected using informal program inspections

(2) The Cleanroom process claims more than 90% of defects can be discovered through inspections

(3) Inspections have been shown to be more effective for defect discovery than program testing

Explanation

Studies by Fagan (1976) showed over 60% of errors detectable through informal inspections. The Cleanroom process claims over 90% defect discovery through inspections. Research generally shows inspections are more effective than testing for defect discovery - but inspections cannot replace testing entirely.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Verification, Validation, and Inspections