Knowledge-based and template-based perceptual design of a user interface

Once a domain model has been developed, one needs to design the user interf ace. This is divided into two clear phases, namely the logical design leadi ng to abstract user interface objects (AUI), which constitute a specificati on of the user interface and a perceptional design which represents the fin al screen designs, including layout and mapping of the AUIs onto an appropr iate widget set. We propose two different approaches to this perceptual des ign based on (a) a knowledge-0based approach, and (b) a template-based appr oach.