Elevators, Escalators & Vertical Transport Equipment worked example

Warranty Exposure Score with warranty severity score of 20 score: a worked example

This scenario runs the warranty exposure score calculation on the strong side: warranty severity score of 20 score, with every other input held at its documented default. a quality or service manager needs to rank warranty risk before release, shipment, or modernization turnover

The inputs for this scenario

  • Warranty severity score: 20 score (raised for this scenario; the documented default is 8)
  • Expected callback occurrence score: 5 score (unchanged)
  • Pre-shipment detection difficulty score: 4 score (unchanged)

Working through the calculation

  • Applying the documented formula (Warranty exposure score = severity × 0.40 + occurrence × 0.35 + detection × 0.25) to the inputs above produces each figure below.
  • At this operating point the engine returns 10.75 score for warranty exposure score, the number this scenario is built around.
  • At this operating point the engine returns 20 score for warranty severity score.
  • At this operating point the engine returns 5 score for expected callback occurrence score.
  • At this operating point the engine returns 4 score for detection difficulty score.

How this compares with the baseline

  • Against the tool's baseline example, where warranty severity score sits at 8 score and the headline result is 5.95 score, this scenario comes in 80.67% above the baseline at 10.75 score.
  • Use it during design review or pre-shipment quality gates to rank units, options, or failure modes by warranty risk. 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

  • Warranty exposure score: 10.75 score (headline result)
  • Warranty severity score: 20 score
  • Expected callback occurrence score: 5 score
  • Detection difficulty score: 4 score

Run it with your numbers

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

Last reviewed 2026-05-12.