NPI, DFM/DFA & Engineering Change worked example

BOM Maturity Score with bom risk severity rating of 3 score: a worked example in npi, dfm/dfa & engineering change

This worked example runs the bom maturity score numbers for a tougher week than the baseline: bom risk severity rating of 3 score instead of the typical 6 score. Estimate bom maturity 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

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

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where bom risk 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 BOM reviews and design-release gates to triage which bill-of-materials risks to mitigate first. 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

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

Run it with your numbers

  • To rerun this with your own numbers, open the live BOM Maturity Score calculator, set bom risk severity rating to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.