| optimization horizon (SCM-APO-OPT) |
Time segment in which the schedule should be optimized.
During optimization, only those activities that lie entirely within the optimization horizon can be rescheduled. Activities that lie entirely or partially outside of the optimization horizon are not rescheduled; they are fixed during optimization. However, due to their relationships and pegging relationships to the other activities within the optimization horizon, these fixed activities determine how far these other activities can be shifted.