The forms are the basic user interface in the role tailored client (rtc).
Customers use pages for tasks like creating sales invoices and purchase orders, tracking the general ledger balance, and working with warehouse items.
The XML-based pages unlike forms, give you the flexibility to display pages in the RoleTailored client or to publish a page using a Web service.
The new object has another advantages over the old forms. The forms had an exact placement of a field, which made source code compares very unreliable, as one new field inserted would change the following fields location.
Pages are created and modified in the Object Designer in [What is C/Side?|C/Side]].