Reschedule Work Order Structure

Explanation

This activity is used to reschedule a work order structure by using IFS/Constraint Based Scheduling (IFS/CBS).

Prerequisites

To perform this activity, the work order structure must already be known to the scheduling server. If the work order site is enabled for use with IFS/CBS, this has happened when the work order structure was set to the Prepared status.

System Effects

The work order structure will be rescheduled according to any changed settings on the work order structure, its work orders and/or its operations. For instance, the required start date may have been changed, dependencies between work orders added or removed, or tools added or removed.

As a result of the rescheduling run, the following updates will take place:

• All the work order operations will be updated with new planned start and end dates.
• Allocations for the work order operations will be updated, based on the constraints on the operations.
• Planned start and end dates will be updated on the tools and facilities lines for the operations.
• The material requisition lines required for an operation will be updated with the planned start date of the operation.
• The planned start date on the work orders will be updated with the planned start date of the first operation on the work order.
• The planned completion date on the work order will be updated with with the planned end date of the last operation on the work order.
• In case the work order is a node in the structure, the structure start date will be updated with the start date of the first work order in the structure below this node.
• Similarly, the structure completion date will be updated with the completion date of the last work order in the structure below this node.

Window

Work Order Execution Logic

Related Window Descriptions

Work Order Execution Logic

Procedure

1. Open the Work Order Execution Logic window and query (F3) for the necessary work order structure.
2. If there are any changes to be made to the work order structure, like changing dependencies or adding operations, do this first.
3. Right-click on the header of the window and then click Reschedule Work Order Structure/Project. The Reschedule Work Order Structure/Project dialog box opens.
4. Select the relevant check boxes:

• Select Allow Reassignment if you want the scheduling server to allow work order operations to change resources already allocated to it.
• Select As Late As Possible if you want the scheduling server to place the work orders as close as possible to their required date, i.e., the date in the Latest Completion field of the work order or work order structure.
• Select Include Released Orders if you want the scheduling server to reschedule work orders that has been released but not yet started.
• Select Compress Downstream from Bottleneck if you want the scheduling server to try to keep work order operations of any given work order as close as possible to the bottleneck resource.
• Select Refresh Materials if you want the system to update the scheduling server with the current material availability profile for the site. This is done for parts that has been defined as finite parts.

5. Click OK. The rescheduling request is now sent to the scheduling server.