PPI Repository

Ratio between the number of times that an activity is instantiated in the event log, and the number of human resources that are involved in the execution of an activity in the event log.

Process where several human resources are involved.

Minimizing the number of human resources involved in the execution of an activity is desirable.

act
actinst
hres

Formula for practitioners

$\frac{\mathit{I}(a)}{\mathit{HR}(a)}$

$\mathit{I}(a)$ returns the total number of instances of activity $a$.
$\mathit{HR}(a)$ returns the number of unique human resources that performed activity $a$.