Creating a Relationship in the Graphic 
Prerequisites
For more information, see
Prerequisites for Creating Relationships.Procedure
You reach the SAP Graphical Editor screen. This displays all the operations that have been entered previously for the maintenance task list.
Each element in a maintenance plan (for example, operation, sub-operation, material component) is valid for a certain period of time.
The system will connect the two operations with a line and will record the type of relationship above the line. The line extends from the right edge of the predecessor to the left edge of the successor, and therefore only shows that a relationship exists; the type of relationship is always written above the line.

Defining the relationship type using the mouse cursor (lines here do not correspond to those you would see in the graphic on the screen)
Make all the required entries. The help functions support you in this.
Use Back to return to the graphical display.

From the graphic (menu option Details), you can also call up the screens for externally and internally processed operations, enter or change data and then return to the graphic for relationships.
You can also create new operations in the graphic. To do this, see Creating an Operation in the Graphic.