To create use case from business process diagram:
- Download FireSafetyDepartment.vpp. You can also find this file at the bottom of this tutorial.
 - Open the downloaded .vpp file in Visual Paradigm. To open a project, select Project > Open from the application toolbar.
 - Depends on how your process model was created, sometimes a task or a sub-process can be 'big enough' to represent a business goal. Through reviewing your business process diagram you can identify the goals as use cases. Now, let's create a use case from the Select Inspection cases for next week task inside Regular Inspection To-be Process business process diagram. Right-click on the task and select Related Elements > Transit to New Use Case... from the popup menu.

 - We first specify the Model for storing the use case. Click on ... next to the Parent Model field.

 - In the Select Parent Model window, select the project node.

 - Click New Model.
 - Name the model as Use Case Model. Click OK.

 - Click OK in the Select Parent Model window.
 - Keep Transit Parent Lane as Actor selected. This will create actor based on the lane containing the task and link it to the generated use case.

 - Click OK to proceed.
 - In the Visualize Model Element window, keep Create new diagram selected. Name the diagram as Fire Safety Use Case Diagram.

 - Click Create. A use case diagram will be created.

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		You can always trace between use case and task though the transit resource icon that appear at the bottom right of a shape.
		
		
	 
