→ skos:prefLabel → "Mean time to repair"@en
→ od:hasLippertNote → "Mean time to repair (MTTR) is a basic measure of the maintainability of repairable items.
It represents the average time required to repair a failed component or device.
Expressed mathematically, the MTTR formula is the total maintenance time divided by the total number of maintenance actions over a specific period.
MTTR = total maintenance time/number of repairs (2)"@en