PPI Repository

Number of times that any activity belonging to a subset of activities is instantiated again, after its first instantiation, in all case of a group of cases.

Process where rework occurs recurrently, but only the rework of some activities is of interest.

Minimizing rework is desirable.

act
actinst
case
type

Formula for practitioners

$\sum _{c \in g} \mathit{RewSub}(c, \mathit{sub})$

$\mathit{RewSub}(c, \mathit{sub})$ returns the rework count for subset $\mathit{sub}$ in case $c$.