PPI Repository

Sum of the elapsed time for all times that any activity is instantiated again, after its first instantiation, in a case.

Process where measuring the time spent on rework activities is of relevance.

Minimizing the time spent on reworking is desirable.

act
actinst
case
time
type

Formula for practitioners

$\mathit{LT}(c) - \sum _{a \in A} \mathit{filt}(c, a)$

$\mathit{LT}(c)$ returns the total lead time of case $c$.
$\mathit{filt}(c, a)$ returns the lead time of the first instance of activity $a$ in case $c$.