Which metrics are used to measure incident management performance in FOSSE?

• A. MTTA (mean time to acknowledge), MTTR (mean time to resolve), number of incidents, severity distribution, and re-open rate.
• B. MTTA, MTTR, and customer satisfaction scores.
• C. Mean time to respond and total downtime.
• D. Number of incidents and re-open rate only.

Answer: (A)

Measuring incident management performance hinges on capturing speed, volume, impact, and closure quality. MTTA (mean time to acknowledge) and MTTR (mean time to resolve) quantify how quickly the team detects and fixes issues, directly reflecting efficiency in handling incidents. Including the number of incidents shows workload and demand, while severity distribution reveals how severe the incidents are and how much they affect services, helping prioritize improvements. Re-open rate indicates whether issues were resolved properly or if problems recur, pointing to the quality of the closure process.

Other options miss one or more of these essential aspects: customer satisfaction scores focus on broader service experience rather than incident handling performance; total downtime is an overall service outcome rather than a direct incident-management metric; and a limited set of metrics (like only two) leaves out impact and quality indicators that are crucial for a complete picture.