NPI, DFM/DFA & Engineering Change worked example

ECO Workload at 5.76% engineer utilization target: a worked example

Suppose engineer utilization target falls to 5.76%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate eco workload for npi, dfm/dfa and engineering change using production-ready inputs so teams can compare demand with available capacity and identify overload risk.

The inputs for this scenario

  • Pending ECO hours in queue: 100 units (held at the documented default)
  • Change-board hours available per week: 1.2 units (held at the documented default)
  • Engineer utilization target: 5.76 % (the input this scenario stresses; the baseline uses 8)

Working through the calculation

  • The calculation starts from the formula this tool documents: Required eco workload load = eco workload demand รท eco workload utilization target.
  • Total load works out to 120 hr at these inputs, and this is the headline figure for the scenario.
  • Hourly equivalent works out to 20.83 hr / hr at these inputs.
  • Input load works out to 100 hr at these inputs.
  • Load factor works out to 1.2 x at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where engineer utilization target sits at 8% and the headline result is 120 hr, this scenario lands almost exactly on the baseline at 120 hr.
  • It converts a pool of pending ECO hours and a utilization target into the total effective load required and the gap against available change-board capacity. 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

  • Total load: 120 hr (headline result)
  • Hourly equivalent: 20.83 hr / hr
  • Input load: 100 hr
  • Load factor: 1.2 x

Run it with your numbers

  • To rerun this with your own numbers, open the live ECO Workload calculator, set engineer utilization target to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.