As mentioned above, Create Blank Project can be used to create only project Skeleton. User should take this approach to create and build process flow when either Business objects or Work parties are not yet defined or stated. This approach may also be used when user wants to begin with only process flow diagram and have yet to decide to add other important process components.
Note: Create Blank Project is a not a step by step guide for user to create a Business Process. User can build partial process components with Create Blank Project. So, it is always a good practice for new users to use "Create Project Wizard" to create your business processes, if user already has all 3 important components - Business Object (BO), Work parties/User Roles and Process diagram.