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Expected percentage of times that any activity is instantiated again, after its first instantiation, in a case belonging to a group of cases.

If the event log does not contain cost information, Expected Rework Percentage can be used as a proxy for the cost performance of a group of cases.

Minimizing rework is desirable.

act
actinst
case
type

Formula for practitioners

$\frac{\sum _{c \in g} \mathit{RewP}(c)}{\mathit{C}(g)}$

$\mathit{RewP}(c)$ returns the rework percentage for case $c$.
$\mathit{C}(g)$ returns the number of cases in group $g$.