Compact Scheduling
In compact scheduling, the system tries to achieve a schedule for deallocated operations or for whole orders that has the smallest possible time intervals between the operations; ideally, the intervals are the minimum intervals defined in the source of supply for in-house production. This means that, by using compact scheduling, you can reduce or minimize the lead times, thereby achieving a more compact schedule.
Note
Compact Scheduling concentrates on reduction of lead time of orders. To achieve this in a meaningful way, orders must not contain fixed activities. If they do, a compact schedule cannot be guaranteed.
If orders do contain fixed activities (such as partially confirmed orders), other Optimization strategies such as Prioritization or PCO should be used instead.
Prerequisites
You have specified in the strategy profile that the system should consider the time relationships between operations
You have set compact scheduling in the strategy profile
Features
The following options are available for compact scheduling:
Schedule deallocated operations compactly
If you choose this option, the system compactly schedules the deallocated operations for all orders affected by the rescheduling of an operation. The system tries to adjust the dates and modes of the deallocated operations so that, if possible, the time intervals to the operations with which they have time relationships are as small as possible.
Schedule deallocated operations and selected orders compactly
If you choose this option, the system compactly schedules the orders selected for scheduling, in addition to the deallocated operations (see above); that is, the system schedules each of the selected orders in such a way that the intervals between its operations are as small as possible, regardless of whether the operations are scheduled or deallocated.
Schedule all affected orders compactly
If you choose this option, the system compactly schedules all the orders, including the selected orders, that it has to reschedule as a result of scheduling or rescheduling an operation or order. Therefore, the system tries to achieve the minimum intervals between the operations in all the affected orders, regardless of whether the operations are scheduled or deallocated.
No compact scheduling
If you choose this option, the system only reschedules operations if the relationships to these operations are violated, and you specified in the strategy profile that these relationships must be considered. Rescheduling is executed in such a way that the relationships are no longer violated; that is, the intervals between the operations do not fall below the minimum, and the maximum intervals are not exceeded. It is therefore not necessary to achieve the minimum intervals.
NOTE:
The system always tries to achieve the minimum interval between the activities in an operation, regardless of whether or not you set compact scheduling.
If a minimum interval is not defined in the source of supply for in-house production for a relationship, the system uses an interval of 0.