Alter Dependencies

Explanation

This activity is used to create or modify dependencies. Dependency relationships (predecessor - successor) can be created between the work tasks of a particular work order or between different work orders in the work order structure. Dependencies cannot be created between work tasks of different work orders in the structure. If a work order does not contain any work tasks, dependencies cannot be created to this work order.

When creating or modifying dependencies using the Gantt chart, the Dependencies mode must be opened by right-clicking on the graph, and then clicking Create Dependencies Mode. In this mode you’ll see that the cursor becomes a pen, which can be used to draw the dependencies between different nodes in the structure.

You can also create dependencies by selecting Create Dependencies Mode in the top of the window.

Prerequisites

• The structure must have been released, and the work order structure created.
• Work order/work tasks must have been defined.
• The dependant work order must be in a status lower than Started.

System Effects

• Dependencies are created between two or more work tasks of a work order.
• Dependencies are created between two or more work orders in the structure.

Window

Work Order Structure

Related Window Descriptions

Work Order Structure;
Work Order Structure/Dependencies/Predecessors
Work Order Structure/Dependencies/Successors
Predecessors - Work Task
Predecessors - PM/Work List
Predecessors - Work task templates/Work List

Procedure

• Gantt chart
• Predecessors sub tab
• Successors sub tab
• Predecessors dialog box

Gantt chart

Use this procedure to create dependencies between the work tasks of a particular work order:

1. Open the Work Order Structure window and query for the desired work order or object ID.
2. Select the Right mouse button option in the header Work Order Planning Gantt.
3. Right-click on the graph, and then click Create Dependencies Mode.
4. Draw dependencies between the work tasks of the selected work order.
5. The dependency will be directly saved.

Use this procedure to create dependencies between work orders in the structure:

1. Open the Work Order Structure window and query for the desired work order or object ID.
2. Select the Right mouse button option in the header Work Order Planning Gantt.
3. Right-click on the graph, and then click Create Dependencies Mode.
4. Draw dependencies between work orders.
5. The dependency will be directly saved.

Use this procedure to remove existing dependencies between operations or work orders.

1. Open the Work Order Structure window and query for the desired work order or object ID.
2. Select the Right mouse button option in the header Work Order Planning Gantt.
3. Right-click on the dependency line, i.e., the Black arrow, and then click Delete Link.

Predecessors sub tab

Use this procedure to define a predecessor for a certain operation:

1. Open the Work Order Structure window and query (F3) for the necessary work order or object ID.
2. In the graphical object structure select the work task for which you want to define a predecessor.
3. Click the Dependencies tab and then click the Predecessors sub tab.
4. Create a new record (F5).
5. In the Task No field, enter the Work Task that is to be the predecessor. Use the List of Values to select a valid value.
6. Save the information (F12).

Use this procedure to define a predecessor for a certain work order:

1. Open the Work Order Structure window and query (F3) for the necessary work order or object ID.
2. In the graphical object structure select the work order for which you want to define a predecessor.
3. Click the Dependencies tab and then click the Predecessors sub tab.
4. Create a new record (F5).
5. In the Predecessor WO Number field, enter the operation that is to be the predecessor. Use the List of Values to select a valid value.
6. Save the information (F12).

Successors sub tab

Use this procedure to define the successor for a certain operation:

1. Open the Work Order Structure window and query (F3) for the necessary work order or object ID.
2. In the graphical object structure select the Work Task for which you want to define a successor.
3. Click the Dependencies tab and then click the Successors sub tab.
4. Create a new record (F5).
5. In the Task No field, enter the Work Task that is to be the successor. Use the List of Values to select a valid value.
6. Save the information (F12).

Use this procedure to define a successor for a certain work order:

1. Open the Work Order Structure window and query (F3) for the necessary work order or object ID.
2. In the graphical object structure select the work order for which you want to define a successor.
3. Click the Dependencies tab and then click the Successors sub tab.
4. Create a new record (F5).
5. In the Successor WO Number field, enter the operation that is to be the successor. Use the List of Values to select a valid value.
6. Save the information (F12).

Predecessors dialog box

To define dependencies between work tasks or work lists, follow the procedure described in Define Predecessor Relationships.