Metrics
MTTM (mean time to mitigate) is the average time it takes to mitigate from a product or system failure. This includes the full time of the outage—from the time the system or product fails to the time that it becomes mitigated.
MTTR (mean time to recovery or mean time to restore) is the average time it takes to recover from a product or system failure. This includes the full time of the outage—from the time the system or product fails to the time that it becomes fully operational again.
Incidents / severities is a great place to see what severities are the most impacted by your incidents over time.
Incidents / services is a great place to see what services are the most impacted by your incidents over time.
Incidents / functionalities is a great place to see what functionalities are the most impacted by your incidents over time.