Form Views
A Form View is a Form that has been created specifically for a Business Object View so that data from a Business Object can be exposed in a more secure and more personal way via a Role.
For example, create an Incident Form for the OOTB Portal View so Customers can access a simpler Incident Form and Grid. This Form might display only required Fields, and Field labels may be changed so that they sense to a Customer.
After a View is created, you can select it and then create Forms for the View, just as you would any Business Object.