ST(i)\mathit{ST}(i)
Dimension:
Time
Granularity:
Activity instance

Description

Elapsed time between the start and complete events of an activity instance.

Potential use

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

Assumptions

Minimizing service time is desirable.

Desired Value:

MINIMIZE

Required attributes

actinst
time
type

Equations

Formula for practitioners

ctime(i)stime(i)\mathit{ctime}(i) - \mathit{stime}(i)

ctime(i)\mathit{ctime}(i) returns the completion timestamp of activity instance ii.
stime(i)\mathit{stime}(i) returns the start timestamp of activity instance ii.

Formal Definition

ctime(i)stime(i)\mathit{ctime}(i) - \mathit{stime}(i)

Tags

actinst
time
type

Python implementation

This indicator is implemented in the process_performance_indicators Python library.

process_performance_indicators.indicators.time.instances.service_time