11.5. Consider one of the following interactive applications (or an application assigned by your instructor):

a. A desktop publishing system

b. A computer-aided design system

c. An interior design system (as described in Section 11.3.2)

d. An automated course registration system for a university

e. A library management system

f. An Internet-based polling booth for public elections g. A home banking system h. An interactive application assigned by your instructor Develop a user model, design model, mental model, and an implementation model, for any one of these systems.