MES, MOM & Shop-Floor Data Systems worked example

Machine Data Completeness at 99% target completeness rate: a worked example

This scenario runs the machine data completeness calculation on the strong side: 99% target completeness rate, with every other input held at its documented default. Use after initial MES connectivity to audit which machines still have missing or intermittent data tags, so you can prioritize remediation before relying on the data for OEE or analytics.

The inputs for this scenario

  • Machines with complete data feeds: 38 machines (unchanged)
  • Total machines in MES scope: 45 machines (unchanged)
  • Target completeness rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Completeness rate = (machines with complete feeds / total machines in scope) x 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 84.44 % for machine data completeness rate, the number this scenario is built around.
  • At this operating point the engine returns 14.56 points for gap to completeness target.
  • At this operating point the engine returns 38 count for machines with complete data.
  • At this operating point the engine returns 45 count for total machines in scope.

How this compares with the baseline

  • Against the tool's baseline example, where target completeness rate sits at 95% and the headline result is 84.44 %, this scenario lands almost exactly on the baseline at 84.44 %.
  • Use it during an MES or IIoT connectivity rollout and in weekly data-health reviews to decide whether your OEE and downtime numbers are trustworthy yet. 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

  • Machine data completeness rate: 84.44 % (headline result)
  • Gap to completeness target: 14.56 points
  • Machines with complete data: 38 count
  • Total machines in scope: 45 count

Run it with your numbers

  • Every input above is editable in the live Machine Data Completeness calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.