Start After End :
Time
Move 4.00 Hours
Queue 0.00 Hours
Setup 0.00 Hours
Separation
Minimum  4.00 Hours
Maximum  7.00 Hours

In a routing diagram, links between operations display the precedence relationship as text labels on the links between operations.

The following screen shows the properties for a routing link in which you set precedence relationships:

This diagram illustrates the temporal constraints between operations:

Designating Primary Operations

To designate primary operations:

1. Access the routing diagram window.
2. Right-click the operation that you want to designate.
3. Select Primary Operation.
   The operation now appears with a blue border around its name.
   The following diagrams provide an example of assigning a primary operation.
   
   As a result of selecting Primary Operation, the screen below shows a routing with the last operation designated as the primary operation:
   

Creating a New Routing and Routing Diagram

To create a new routing and routing diagram:

1. From the Model Workspace, right-click All Routings or right-click a routing folder and choose New Routing.
2. Type a name for the routing and press Enter.
3. Double-click the new routing.
   An empty workbook tab opens.
4. Open the All Operations folder and drag the operations you want to include in the diagram into the empty work pane.
5. On the toolbar, click the Insert Link icon.
6. To link two operations, click the first operation, and then click the second.

Setting Routing Properties

Use the routing Properties window to assigning properties.

To access the routing Properties window, right-click a routing from the Model Workspace and select Properties. The routing Properties window display 4 tabs: General, Attributes, Resource Assignments, and Where Used.

Setting Routing Properties - General Tab

To set general properties complete these fields:

1. From the Model Workspace, right-click a routing and select Properties.
2. Select the General tab.
3. Complete these fields:
   

   Routing Properties - General Tab Field	Description
   Code	Enter a unique code for the routing.
   Notes	Enter any routing-specific notes.

Setting Routing Properties - Attributes Tab

To set routing property attributes:

1. From the Model Workspace, right-click a routing and select Properties.
2. Select the Attributes tab.

Complete these fields:

Routing Properties - Attributes Tab Field	Description
Routing Type	Select a routing type from the list. Options are: Production - Select if your routing produces one or more items. Maintenance - Select if your routing produces no items or is used for cMRO or other maintenance activities. This type of routing consumes time and may consume items. For example, a work order to clean a machine would be a maintenance routing. Routings of this type may produce an item, but are not required to. EAM - Select if your routing represents activities modeled in the Enterprise Asset Management system. Note: If a routing is currently assigned to a work order, you cannot change the routing type or structure without first removing the associated work orders.
Use this Routing for Work Orders only	Select this option if routing should only run when it is associated with a work order. For special configurations or one-off production, you may want to create an alternate routing that produces an item using a different set of operations. The system identifies these routings so that the solver does not try to use them to fulfill demand. Routings identified for use with work orders are only run when they are specified in a work order. If demand exists for an item, but no associated work order exists, the solver does not run a routing that is marked to be used in work orders only.
Schedule Work Order operations according to their unit of effort	This option breaks up associated work order operations into their individual units of effort. By dividing operations into smaller units of effort, scheduling is both more flexible and accurate. This principle is explained in more detail in the examples, which follow this section. See "Scheduling Work Orders According to Units of Effort Overview," Configuring Solver Options, Production Scheduling.
Adjacent operations preferred	When enabled, this flag instructs the Production Scheduling solver to schedule all work order operations adjacent to each other when the operations are broken down into their units of effort.
Ship Buffer	Assign a ship buffer if you have enabled Theory of Constraints. See "Working with Buffers," Creating Production Scheduling Models, Production Scheduling.

Setting Routing Properties - Resource Assignment Tab

Alternate resources are common in many manufacturing operations. These alternate resources are modeled through the use of resource sets. In many cases, this resource set recurs in an upstream or downstream operation. In many cases, it is important that once a resource is selected in an upstream operation, it must also be selected in a downstream operation.

To perform consistent resource assignment within only a selected group of operations within a routing, setup operation resource assignment groups within a given routing. For example, operation steps 10, 20, and 30 must run on the same resource. However, operation steps 40, 50, and 60, even though they share a common resource with the preceding operations, can run on the alternate.

Use the Routing Properties - Resource Assignment tab to set up alternate resources.

To set routing property resource assignments:

1. From the Model Workspace, right-click a routing and select Properties.
2. Select the Resource Assignment tab.
   All ungrouped operations are listed in the left column and sorted in alphanumeric order.
3. Select the Add New Group button.
   A default group is created.
4. To rename the group, select F2, or double-click the group name.
5. On the left side of the list, highlight the operation, or operations, that you wish to group together.
6. Click the right arrow button to move the highlighted operations to the right side of the list.
   The operations are assigned to the highlighted group in the right column.
7. Repeat the process to create additional resource assignment groups for any operation within a routing.

Note: If an operation is not assigned to a group it can run on any resource.

If using All of Sets, for example more than one resource such as a machine 1 and tool 1, or machine 2 and tool 2, consistent resource assignment applies to the group. Meaning the group must be the same.

See "Creating All of Sets," Creating Production Scheduling Models, Production Scheduling.

Setting Routing Properties - Where Used Tab

The Routing Properties - Where Used tab displays:

• Routing in the event that a routing is embedded in another routing.
• Work orders that contain this routing.

You can double-click a routing or a work order in the list to open it.