Multi frame pages are a special set of pages. Normal pages represent a generated HTML page - a multi frame page represents a generated HTML frameset page.
A multi frame page does not contain controls but frames in which other pages are positioned. Each frame is associated with an ID (called "target" in this section). A frame may be:
a normal HTML page
an intelligent Application Designer page
a frameset itself containing frames
Multi frame pages are the preferred way of arranging Application Designer pages in a frameset. Besides enhanced possibilities of communication between frames, multi frame pages automatically take care of keeping all Application Designer frames inside the same session. See section Session Management in Working with Pages (which is part of the Application Designer documentation) for more details.