PPI Repository

Sum of elapsed time between the start and complete events of all instantiations of an activity in the event log.

Event log that contains lifecycle information for activity instances where the actual time spent executing them is of interest.

Minimizing service time is desirable.

act
actinst
time
type

Formula for practitioners

$\sum _{i \in \mathit{inst}(a)} \mathit{ST}(i)$

$\mathit{inst}(a)$ returns the set of all instances of activity $a$.
$\mathit{ST}(i)$ returns the service time of activity instance $i$.