Supplier Quality, Development & Audits worked example

Supplier Risk Score with severity of supplier failure of 15 score: a worked example in supplier quality, development & audits

This scenario runs the supplier risk score calculation on the strong side: severity of supplier failure of 15 score, with every other input held at its documented default. Use it when supplier risk in supplier quality, development and audits needs a defensible ranking against other supplier quality, development and audits risks for the next review.

The inputs for this scenario

  • Severity of supplier failure (impact on your line/customer): 15 score (raised for this scenario; the documented default is 6)
  • Likelihood the supplier defect occurs (frequency): 4 score (unchanged)
  • Detectability at incoming inspection (before it reaches your line): 3 score (unchanged)

Working through the calculation

  • Applying the documented formula (Supplier risk score = supplier risk severity score × supplier risk occurrence score × supplier risk detection score) to the inputs above produces each figure below.
  • At this operating point the engine returns 8.15 score for supplier risk score, the number this scenario is built around.
  • At this operating point the engine returns 15 score for supplier risk severity score.
  • At this operating point the engine returns 4 score for supplier risk occurrence score.
  • At this operating point the engine returns 3 score for supplier risk detection score.

How this compares with the baseline

  • Against the tool's baseline example, where severity of supplier failure sits at 6 score and the headline result is 4.55 score, this scenario comes in 79.12% above the baseline at 8.15 score.
  • Use it during annual supply-base risk ranking, before awarding new business, and after a supplier PPAP or escape to re-tier where audit and development attention should go. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Supplier risk score: 8.15 score (headline result)
  • Supplier risk severity score: 15 score
  • Supplier risk occurrence score: 4 score
  • Supplier risk detection score: 3 score

Run it with your numbers

  • Every input above is editable in the live Supplier Risk Score calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.