This figure shows a sample navigation model based on a banking application. The top level nodes of the navigation model are Personal Banking, Private Banking, Business Banking, and Commercial Banking. Under the Personal Banking node there are four nodes: Current Account, Savings, Investments, and Loans. Under the Current Account node there are two nodes: Our Accounts and New Customers. Under the Our Accounts node there are another two nodes: Regular Current Accounts and Accounts with Extras.