Backward Scheduling 

Use

For optimization of the objective function values, the system schedules activities as early as possible. Under certain circumstances, activities are scheduled far from the requirements date/time, and this increases storage costs. In backward scheduling, which the system can execute after optimization, the system tries to schedule the activities to dates/times that are as close as possible to the requirements date/time in question.  Starting from the requirements date/time in each case, the system searches backward for the next possible scheduling date/time and reschedules the activities.

Prerequisites

If you want the system to execute backward scheduling during optimization, you must make the following settings in the optimization profile or when calling optimization:

·        Set the Backward Scheduling indicator on the Basic Settings tab page

·        On the Additional Strategies tab page, you define whether, in backward scheduling, the system is allowed to increase the makespan achieved during optimization.