KPI definitions
What each number in the reports means, and how it is counted. Twelve measures, split between equipment health and parts inventory.
Equipment health
The share of a period the machine was usable. This is the one production understands, because it answers “was the machine there when I needed it?”
Mean time between failures: running time divided by the number of failures. It measures the equipment's reliability, not how fast you repair it.
Mean time to repair: total repair time divided by the number of repairs. It measures your responsiveness — part availability, technician availability, documentation.
The total hours the machine was not usable. Worth splitting between planned and unplanned: the two do not cost the same.
Failures expressed against 1,000 running hours. It lets you compare two machines that do not run the same number of hours.
An aggregate score per machine, built from the measures above. Useful for ranking a fleet, not for diagnosing one machine.
Parts inventory
The total value of parts held, at catalogue prices. This is the capital sitting on the shelves.
How many times an item is consumed and replenished over a period. Low turnover marks stock that is sleeping.
Items with no movement over a given period. These are the first candidates for a review of minimum levels.
The gap between the level on screen and the level counted in a physical inventory. Below a certain threshold the numbers stop being usable.
How often a requested item was not available. Every stockout lengthens the MTTR of the job that needed it.
The time between placing an order and receiving it. This is what determines the minimum level an item has to hold.
Every one of these is calculated from jobs already logged. None of them requires separate data entry.