CMMS, EAM & Spare Parts Management worked example

Asset Criticality Score with consequence severity if this asset fails of 4.5 score: a worked example

Suppose consequence severity if this asset fails falls to 4.5 score. This page works the full calculation at that level so you can see exactly which result moves and by how much. Score asset criticality using consequence, failure likelihood, and detectability so maintenance and spares priorities align with risk.

The inputs for this scenario

  • Consequence severity if this asset fails: 4.5 score (the input this scenario stresses; the baseline uses 9)
  • Likelihood of failure within the review window: 4 score (held at the documented default)
  • Difficulty of detecting the failure before it happens: 5 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Asset Criticality Score risk score = asset consequence severity score × asset failure likelihood score × failure detectability weakness score.
  • Asset Criticality Score risk score works out to 4.45 score at these inputs, and this is the headline figure for the scenario.
  • asset consequence severity score works out to 4.5 score at these inputs.
  • asset failure likelihood score works out to 4 score at these inputs.
  • failure detectability weakness score works out to 5 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where consequence severity if this asset fails sits at 9 score and the headline result is 6.25 score, this scenario comes in 28.8% below the baseline at 4.45 score.
  • It multiplies a consequence severity score, a failure likelihood score and a detectability weakness score into a single criticality (RPN-style) number for one asset. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Asset Criticality Score risk score: 4.45 score (headline result)
  • asset consequence severity score: 4.5 score
  • asset failure likelihood score: 4 score
  • failure detectability weakness score: 5 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Asset Criticality Score calculator, set consequence severity if this asset fails to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.