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Variable cost associated with an activity instance, measured as the latest recorded value among the events of the activity instance.

Event log in which variable cost information is recorded.

Minimizing variable cost is desirable.

actinst
type
vc

Formula for practitioners

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

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