Once you have basically “finished” your PAT Phase One, you can start on Phase Two.
For now, it makes good sense to visualize your PAT as a flow diagram ie each screen, the labels, fields and buttons on each GUI and the navigation between screens (all very easy to do as NetBeans does the hard work for you)
Look at this example based on a DVD rental store. By designing your own sequencing flowchart like this, in rough using pencil and paper, you can begin to get a clear idea about your tables and the objects needed in your program. In this example, it is clear that a DVD object is needed, and a customer object is needed. In our database we will need a DVD table, a customer table and a genre table. Now it is easy to work out the field we require in each table.