Which of the following BEST describes error-feedback ratio?

The correct answer is D. Number of new defects injected when fixing existing defects. The error-feedback ratio (also called fix-on-fix rate or defect injection during repair) measures the number of new defects introduced while fixing existing ones. It highlights the risk that code changes made to correct bugs can inadvertently break other parts of the system. A hi

Submitted by devops_kid· Apr 18, 2026Continuous Improvement

Question

Options

ATime spend to fix the hard bugs
BNumber of defects corrected in a specific time
CNumber of errors predicted
DNumber of new defects injected when fixing existing defects

How the community answered

(65 responses)

A
6% (4)
B
3% (2)
C
2% (1)
D
89% (58)

Explanation

The error-feedback ratio (also called fix-on-fix rate or defect injection during repair) measures the number of new defects introduced while fixing existing ones. It highlights the risk that code changes made to correct bugs can inadvertently break other parts of the system. A high error-feedback ratio indicates poor fix quality and insufficient regression testing.

Topics

#Error-feedback ratio#Defect management#Quality metrics#Process improvement

Community Discussion

No community discussion yet for this question.

Full PMI-ACP Practice