MES, MOM & Shop-Floor Data Systems worked example

Genealogy Coverage at 72% target genealogy coverage rate: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop target genealogy coverage rate to 72%, then walk the calculation through step by step. Measure what percentage of finished goods have complete component genealogy (parent-child traceability linking every component lot or serial to the finished unit).

The inputs for this scenario

  • Finished units with complete genealogy records: 4,650 units (held at the documented default)
  • Total finished units produced in the period: 5,000 units (held at the documented default)
  • Target genealogy coverage rate: 72 % (the input this scenario stresses; the baseline uses 100)

Working through the calculation

  • The calculation starts from the formula this tool documents: Genealogy coverage rate = (units with full genealogy / total units produced) x 100.
  • Genealogy coverage rate works out to 93 % at these inputs, and this is the headline figure for the scenario.
  • Gap to genealogy target works out to -21 points at these inputs.
  • Units with full genealogy works out to 4,650 count at these inputs.
  • Total units produced works out to 5,000 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target genealogy coverage rate sits at 100% and the headline result is 93 %, this scenario lands almost exactly on the baseline at 93 %.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to target genealogy coverage rate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It counts records as present or absent — it does not verify that captured genealogy data is accurate, so 93% coverage with sloppy lot entries can still fail an audit.

Results at a glance

  • Genealogy coverage rate: 93 % (headline result)
  • Gap to genealogy target: -21 points
  • Units with full genealogy: 4,650 count
  • Total units produced: 5,000 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Genealogy Coverage calculator, set target genealogy coverage rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.