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Priority in Defect Testing

publish date: 2026/06/14 03:12:55.702619 UTC

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In defect testing, what is the primary priority when selecting test inputs?

Find inputs that demonstrate normal system functionality

Find inputs that maximize code coverage across all modules

Find inputs in the set Iₑ that reveal problems with the system

Find inputs that test the most frequently used features first

Correct Answer

Find inputs in the set Iₑ that reveal problems with the system

Explanation

The priority in defect testing is to find those inputs in the set Iₑ because these reveal problems with the system. These are the inputs that cause the system to generate erroneous outputs in set Oₑ.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Testing Goals and Validation vs. Defect Testing