PPI Repository

activity Instance count

\mathit{I}(g)

Dimension:

Time

Granularity:

Group of cases

Number of times that any activity is instantiated in a group of cases.

If the event log does not contain timestamps, activity Instance count can be used as a proxy for the time performance of a group of cases.

A greater number of activity instances implies that the cases in a group of cases take longer to complete.

MINIMIZE

actinst
case

$\sum_{c \in \mathit{cases}(g)} \mathit{I}(c)$

$\mathit{cases}(g)$ returns the set of cases in group of cases $g$ .
$\mathit{I}(c)$ returns the activity instance count of case $c$ .

$\sum _{c \in g} \mathit{I}(c)$

This indicator is implemented in the process_performance_indicators Python library.

process_performance_indicators.indicators.time.groups.activity_instance_count