NPI, DFM/DFA & Engineering Change worked example

Manufacturability Score with manufacturability defect severity rating of 3 score: a worked example

This worked example runs the manufacturability score numbers for a tougher week than the baseline: manufacturability defect severity rating of 3 score instead of the typical 6 score. Estimate manufacturability for npi, dfm/dfa and engineering change using production-ready inputs so teams can rank risks and decide which issue needs containment, controls, or escalation first.

The inputs for this scenario

  • Manufacturability defect severity rating: 3 score (the input this scenario stresses; the baseline uses 6)
  • Manufacturability defect occurrence likelihood: 4 score (held at the documented default)
  • Manufacturability defect detection difficulty: 3 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Manufacturability risk score = manufacturability severity score × manufacturability occurrence score × manufacturability detection score.
  • Manufacturability risk score works out to 3.35 score at these inputs, and this is the headline figure for the scenario.
  • Manufacturability severity score works out to 3 score at these inputs.
  • Manufacturability occurrence score works out to 4 score at these inputs.
  • Manufacturability detection score works out to 3 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where manufacturability defect severity rating sits at 6 score and the headline result is 4.55 score, this scenario comes in 26.37% below the baseline at 3.35 score.
  • Use it during DFM reviews to triage which manufacturability concerns get engineering attention before tooling is cut. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Manufacturability risk score: 3.35 score (headline result)
  • Manufacturability severity score: 3 score
  • Manufacturability occurrence score: 4 score
  • Manufacturability detection score: 3 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Manufacturability Score calculator, set manufacturability defect severity rating to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.