Defect Management
Defect management is the process of identifying, recording, tracking, prioritizing, resolving, and verifying software defects throughout their lifecycle.
“The process of recognizing, recording, classifying, investigating, fixing and disposing of defects.”
(Definition reproduced from the ISTQB Glossary. Copyright belongs to ISTQB.)
View the complete ISTQB GlossaryWhat is Defect Management?
A structured defect management process ensures defects are handled consistently from discovery through closure while providing visibility into product quality.
Defect lifecycle: Defects move through defined states such as New, Assigned, Fixed, Verified, and Closed.
Prioritization: Defects are evaluated based on business impact and urgency.
Reporting: Metrics support project management and quality improvement.
Real World Example
A hospital medication system shows a different dosage warning in test than the one specified by the clinical safety rule.
The team needs precise language to separate what was observed, what should have happened, and whether the difference represents a reportable issue. Defect management provides that distinction.
The tester records the steps, data, observed behavior, expected behavior, and evidence so triage can focus on patient safety impact instead of vague descriptions.
The issue is handled faster because Defect management helps everyone discuss the problem using a shared testing vocabulary.
Practice Questions
Question 1
Which statement BEST describes Defect management in the context of ISTQB terminology?
Question 2
A tester needs to explain Defect management to a non‑technical stakeholder. Which approach is MOST appropriate?
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