DevOps/CloudHigh signal
MTTR / MTTA
Also written as Mean Time to Resolution, Mean Time to Recovery, Mean Time to Acknowledge
Standard incident metrics: MTTA is how long it takes someone to acknowledge an alert; MTTR is how long it takes to actually resolve the underlying issue once it's known.
Think of it like
MTTA is how fast someone picks up the phone when it rings; MTTR is how long the actual repair takes once they're on the job.
Junior or senior?
Junior sounds like
Knows the acronyms MTTR and MTTA without knowing their team's actual numbers.
Senior sounds like
Knows roughly what their team's MTTR was, and what brought it down over time.
Ask them
“Do you know roughly what your team's MTTR was for a typical incident, and what brought it down over time?”