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Labor Cost considering the sum of all events of activity instances

\mathit{LC}\mathit{^{sum}}(i)

Dimension:

Cost

Granularity:

Activity instance

Description

Labor cost associated with an activity instance, measured as the sum of all values among the events of the activity instance.

Potential use

Event log in which labor cost information is recorded.

Assumptions

Minimizing labor cost is desirable.

Desired Value:

MINIMIZE

Required attributes

actinst
lc
type

Equations

Formula for practitioners

$\begin{cases} \#^{}_{\mathit{lc}}(\mathit{str}(i)) + & \\ \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) & \mathit{if \ } \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) \neq undefined \land \#^{}_{\mathit{lc}}(\mathit{str}(i)) \neq undefined \\ undefined & \mathit{if \ } \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) = undefined \lor \#^{}_{\mathit{lc}}(\mathit{str}(i)) = undefined \\ \end{cases}$

$\#^{}_{\mathit{lc}}$ returns the labor cost associated with an event.
$\mathit{str}(i)$ returns the start event of activity instance $i$ .
$\mathit{cpl}(i)$ returns the completion event of activity instance $i$ .

Formal Definition

$\begin{cases} \#^{}_{\mathit{lc}}(\mathit{str}(i)) + & \\ \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) & \mathit{if \ } \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) \neq \bot \land \#^{}_{\mathit{lc}}(\mathit{str}(i)) \neq \bot \\ \bot & \mathit{if \ } \#^{}_{\mathit{lc}}(\mathit{cpl}(i)) = \bot \lor \#^{}_{\mathit{lc}}(\mathit{str}(i)) = \bot \\ \end{cases}$

Python implementation

This indicator is implemented in the process_performance_indicators Python library.

process_performance_indicators.indicators.cost.instances.labor_cost_for_sum_of_all_events_of_activity_instances

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