Working with Sub-diagram
VP-UML supports the creation of appropriate sub-diagrams from any diagram (e.g. use case diagram → activity diagram, class diagram → class diagram, etc.). Sub-diagrams can be easily used to draw more detailed representations of the predecessor diagram, thus giving your project more organization.
Creating a Sub-Diagram
Create a new use case diagram and draw the following diagram.
Right-click on the Withdraw Cash use case, select Sub Diagrams → Sequence Diagram → Create Sequence Diagram from the pop up menu.
Open Diagram Navigator. The sub-diagram has been created under the use case diagram.
Create a simple sequence diagram in Sequence Diagram 1. The elements in the diagram will be created automatically in the Diagram Navigator.
You can navigate from the parent-diagram to the sub-diagram easily by using the Subdiagram resource of the Withdraw Cash use case. Click on the resource and select the subdiagram Sequence Diagram 1 to go to.
It is also possible to quickly revert back to the parent-diagram from the sub-diagram by clicking the Diagram Window title bar.
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