timetorepair
Time to repair (TTR) is a reliability and maintenance metric that measures the duration required to restore a system or component to full operation after a failure. It generally refers to the time from failure detection or reporting to the moment the system is confirmed functioning again. Definitions can vary: some include diagnostic and testing time, while others focus only on the on-site repair work.
Mean time to repair (MTTR) is the average TTR observed over a period or across incidents. It
Applications of TTR include maintenance planning, service level agreement (SLA) commitments, and resource allocation for technicians
Limitations include variability across incident types, environments, and how TTR is measured, which can complicate comparisons.