Once you have created the Sub System a Transactional Function and a Data Function can be created.
You must have a Function Point Modeler diagram open. By default, the Palette view opens when you are editing Function Point Modeler Diagram file in Function Point Modeler.
To create a Data Function :
Click FPM Notes drawer in the Palette view. The drawer expands and displays a list of following items:
You can drag and drop it onto the Function Point Modeler Diagram Editor.
Once the Data Function appears on the diagram inside of the Sub System , you can usually set some attributes for it in the Properties view or you can click the attribute of the Data Function to set its value. Type a desired name for the Data Function and press Enter.
Enter the name Book and press Enter.