When performing process modeling in OV-6a, you will frequently decompose Units of Behavior (operational activities) on a diagram by creating a child OV-6a diagram for the operational activity. On this child diagram you model the process flow details of the parent operational activity.
1 In the diagram containing the operational activity to decompose, right-click the operational activity symbol; then click Child Create.
The Child Create dialog box opens showing the name of the symbol on the parent diagram in the Name field and the diagram type of the parent diagram highlighted in the list box.
2 If you do not want to use the name of the object symbol on the parent diagram as a name for the child diagram, type a new name in the Name field.
Note You can change these values; however, to conform with the IDEF0 specification, it is a best practice to accept the default values.
3 Click OK; when prompted to save the parent diagram, click Yes.
The child diagram is created.
When you create a child diagram for an operational activity, the modeling software draws a shadow underneath the parent operational activity.
Note By default, swimlanes appear on the child diagram. You can remove the swimlanes by opening the diagram properties and selecting None on the Swimlanes tab.