Defect classification — SCHEMATIC. Check the product. Identify the lot → Check the product → Record the evidence.
Schematic illustration. It shows a check path, not actual project evidence or a compliance result.

Read the diagram

  1. Identify the lot

    Identify the lot, models and agreed references.

  2. Check the product

    Review the relevant workmanship, function and packaging checks.

  3. Record the evidence

    Record observations and limitations for the next decision.

Understanding the three-tier classification system is foundational to QC. Critical = safety hazard. Major = affects usability. Minor = cosmetic or non-functional. Real examples across industries.

Use note

Articles support understanding of quality risk, standards and service routes. Formal requirements depend on the product, target market and technical project confirmation.

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