We can change the settings of the scheduling parameters in regard to rescheduling. You can easily get results you want by simply adjusting settings such as assignment direction, resource evaluation to decide which resource to be assigned.
This article will focus on basic functions such as Assignment direction, Resource evaluation, and Dispatching rule.
The Dispatching rule defines which operations to be assigned first. Click on the icon below to show Order priority.
The Order priority is set as Descending and the Order due date is set as Ascending at the Default scheduling parameter property.
By dispatching with descending order priority, the operations with higher priority will be assigned first.
This time let’s consider Order due date to deal with Order due date as the priority.
This time, the order “1” with an early due date was assigned to start first.
However, one of the operations was assigned on the right side.
This is because the Assignment direction was set as “According to order” and only one order was assigned backwards.
Let’s change the Assignment direction to Forward. You will notice that the order will be assigned left-justified.
The start order is the same as Dispatching rule.
Next, let’s switch it to Backward to minimize the inventory.
With this kind of direction, it is just common sense to set the Order due date to Descending order in the Dispatching rule. Make sure to change this setup.
Run the re-schedule button and you will see operations are now assigned right justified – assigned according to the due dates in order to minimize inventory.
On the other hand, we can pile up operations by setting the Assignment type as infinite capacity.
To be able to control which equipment and workers to assign the operations, set the weighting at the Resource evaluation parameter.
Since we want to place the highest importance on production performance, set a higher value (e.g. 10000) for Weight – production time minimization.
Run again the reschedule button and the operations have been assigned to minimize the production time in consideration of the waiting time and load.
To learn more about Asprova specific to this sample demonstration, you may visit Asprova’s e-Learning videos at http://lib.asprova.com/ (see 24. Scheduling Logic).