PPI Repository

Number of times that an unwanted activity is instantiated in a case.

Event log that contains activities whose execution is unwanted.

Unwanted activities negatively affect the quality of the process.

act
actinst
case
type

Formula for practitioners

$\displaystyle \sum_{i \in \mathit{inst}(c)} \begin{cases} 1 & \text{if } \mathit{act}(i) \in \mathit{Unwl} \\ 0 & \text{otherwise} \end{cases}$

$\mathit{inst}(c)$ returns the set of all activity instances in case $c$.
$\mathit{act}(i)$ returns the activity of activity instance $i$.
$\mathit{Unwl}$ returns the set of unwanted activities.