S&OP, Demand Planning & Forecasting worked example

Schedule Stability Score with severity of schedule change impact of 3 score: a worked example

This worked example runs the schedule stability score numbers for a tougher week than the baseline: severity of schedule change impact of 3 score instead of the typical 6 score. Estimate schedule stability for sandop, demand planning and forecasting using production-ready inputs so teams can rank risks and decide which issue needs containment, controls, or escalation first.

The inputs for this scenario

  • Severity of schedule change impact: 3 score (the input this scenario stresses; the baseline uses 6)
  • Likelihood of schedule change occurring: 4 score (held at the documented default)
  • Ability to detect the change before it hits: 3 score (held at the documented default)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where severity of schedule change impact 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 to prioritize which schedule-instability drivers to mitigate during S&OP or master-scheduling reviews. 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

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

Run it with your numbers

  • To rerun this with your own numbers, open the live Schedule Stability Score calculator, set severity of schedule change impact to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.