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Defect classification

A method for categorizing defects by severity and impact, typically as critical, major, or minor.

Definition and context

Defect classification helps teams prioritize response speed and shipment decisions based on risk rather than volume alone.

Severity categories are essential inputs for AQL plans and acceptance calculations.

Severity criteria

Critical defects are typically safety or regulatory issues, major defects affect function or buyer acceptance, and minor defects are cosmetic with low impact.

Each program should define severity examples clearly for consistent judgment.

Operational usage

Classification drives escalation, corrective action urgency, and release decisions at each inspection stage.

It also informs CAPA prioritization by highlighting recurring high-severity issues.

Where this term fits in the workflow

Defect classification is usually shown in the inspection and sampling.

Terms used when teams decide what to inspect, how much to sample, and whether a lot can ship.

What is KaizenQ?

KaizenQ helps factory teams record inspection results, defect photos, and notes in one report shared with the office.

Learn more
KaizenQ inspection report preview

Key takeaways

  • Severity-based classification improves decision quality and speed.
  • Clear examples prevent inconsistent defect grading.

Practical guides

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