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Quality & learning

Handle a nonconformance without losing the evidence

A clear record supports a proportionate next decision.

Devon Design Journal editorial · October 7, 2026 · 3 min read

Sketch sheets, a caliper and metal samples on a product designer’s desk.

Describe the mismatch

Identify the item, revision and requirement involved, then record the actual observation. Separate the description from guesses about its cause. Preserve relevant samples and documentation according to the project’s procedures. A vague label such as bad part does not explain what a reviewer needs to resolve and can lead to inconsistent responses.

Control the disposition

Use the appropriate qualified decision process for repair, rejection, further investigation or a bounded acceptance. Record who made the decision and what conditions apply. Do not allow a one-time exception to quietly alter future production requirements. Following the information trail helps the team learn from the issue while keeping the intended specification and actual outcome distinct.

A practical review checklist

  • Describe the specific mismatch.
  • Preserve relevant evidence.
  • Record the authorised disposition.

Further reading

General design-planning material. Actual specifications, machine operation and safety decisions require suitable qualified expertise.