PPI Repository

Service and Lead Time Ratio

\mathit{SLTR}(i)

Dimension:

Time

Granularity:

Activity instance

Ratio between the service time and the lead time of an activity instance.

Event log in which the difference between service time and lead time is of relevance.

Ratio between service time and lead time should be as large as possible.

MAXIMIZE

actinst
case
time
type

$\frac{\mathit{ST}(i)}{\mathit{LT}(i)}$

$\mathit{ST}(i)$ returns the service time of activity instance $i$ .
$\mathit{LT}(i)$ returns the lead time of activity instance $i$ .

$\frac{\mathit{ST}(i)}{\mathit{LT}(i)}$

This indicator is implemented in the process_performance_indicators Python library.

process_performance_indicators.indicators.time.instances.service_and_lead_time_ratio