CMMS, EAM & Spare Parts Management worked example

Maintenance SLA Attainment at 66% target sla attainment: a worked example

This worked example runs the maintenance sla attainment numbers for a tougher week than the baseline: 66% target sla attainment instead of the typical 92%. Measure maintenance SLA attainment by comparing work orders completed within the agreed response or completion window against total SLA-covered work.

The inputs for this scenario

  • SLA-covered work orders completed on time: 520 count (held at the documented default)
  • SLA-covered work orders due: 610 count (held at the documented default)
  • Target SLA attainment: 66 % (the input this scenario stresses; the baseline uses 92)

Working through the calculation

  • The calculation starts from the formula this tool documents: Maintenance SLA Attainment rate = SLA-covered work orders completed on time ÷ SLA-covered work orders due × 100.
  • Maintenance SLA Attainment rate works out to 85.25 % at these inputs, and this is the headline figure for the scenario.
  • Maintenance SLA Attainment gap to target works out to -19.25 points at these inputs.
  • SLA-covered work orders completed on time works out to 520 count at these inputs.
  • SLA-covered work orders due works out to 610 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target sla attainment sits at 92% and the headline result is 85.25 %, this scenario lands almost exactly on the baseline at 85.25 %.
  • Use it for monthly maintenance contract reviews, internal SLA scorecards, or any reliability KPI dashboard. 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

  • Maintenance SLA Attainment rate: 85.25 % (headline result)
  • Maintenance SLA Attainment gap to target: -19.25 points
  • SLA-covered work orders completed on time: 520 count
  • SLA-covered work orders due: 610 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Maintenance SLA Attainment calculator, set target sla attainment to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.