MTTD, MTTA and MTTR are the three core incident response metrics. MTTD is the mean time to detect a problem; MTTA, the mean time until someone acknowledges it and starts working on it; MTTR, the mean time to resolve it. The lower they are, the less impact each incident has.
How TecnetOne handles it: TecnetSOC
mean time to detect, mean time to acknowledge, mean time to resolve, incident metrics