Architecting and designing : Business Process Analysis (BPA) : BPMN : Creating new business process diagrams
  
Creating new business process diagrams
You can create a BPMN diagram to model the business processes of your organization.
1 Click File > New Diagram.
2 In the Select New Type for All dialog box, select Business Process, and then click OK.
System Architect supports only mashup diagrams and does not distinguish between BPMN 1.x and BPMN 2.0.
3 Type a name for the new diagram, and then click OK.
See also
BPMN