Operations, maintenance and contracts
MTTA
Abbreviation for Mean Time to Acknowledge
In short and in plain language
MTTA is the time it takes, on average, for someone to answer a fault report.
It is one way to rate how a team deals with faults.
It is not the time it takes to fix the fault for good.
Definition
MTTA is the average time until an incident is acknowledged after it was reported. It is one of the metrics of incident management. It differs from the time until full resolution.