In the design process, there are three (3) categories of users identified:

Users can be classified in any way that is appropriate to the system being built (depend on the nature of the users and the system is designed for).

Systems to be used by novices require more feedback and more opportunities for closure.

What is a semantic knowledge?

Documentation and help systems does not reduce the amount of time spent searching for the relevant help.

Knowledgeable intermittent user organize their knowledge according to a higher conceptual structure. They are able to recall larger amounts of information that novices can because their knowledge is chunked.

If requirements are easily understandable and defined then which model is best suited?

The Four Pillars can help user-interface architects to turn good ideas into successful system.

The user wants to achieve a single goal but several decisions need to be made. What is the appropriate task to do?

How would the customers and users be given a realistic impression what the final system will look like? 

            acts as a shortcut to an action the computer performs.

Designers must carry out many small or large tests before

releasing it to customers by doing what?

Navigation Design needs to be consider during the design process by arranging the structure of an application and its actual use; questions to be considered are:

Innovative design is the meaningful arrangement of graphics, text, video, photos, illustrations, sound, animation, 3D imagery, virtual reality and other media in the interactive document.