The activity score is a value (0-100) with a status and color which condenses many activity statuses into a single value, and is calculated using our Apdex-inspired formula.

Use the Score to measure short term (acute) sudden changes in performance, as they rely on recent baseline measurements. The score reflects a recent change because it would be significantly different from the established baseline response times.

(For Skype for Business / Lync calls) The system creates baselines for MOS scores in exactly the same way that it baselines activity response times, combining them into an activity score and a status. A dropped call lowers the score's status (like from Good to Fair). Failed calls always have a Critical status.

Therefore if the MOS status has been consistently poor for some time, the system may display a high activity score, because its baselines would have adjusted to this performance.