Midterm Exam in IT Elective 3

Designers should first focus on how well their design will flow in the program.

• True

• False

The primary goal of usability in HCI

• Aesthetics

• Functionality

• User satisfaction and efficiency

• Technical complexity

Which of the following is NOT one of the five usability principles?

• Learnability

• Efficiency

• c) Memorability

• Security

What does “learnability” refer to in usability design?

• How easily a system can be understood by users

• How quickly users can become proficient with the system

• How memorable the system's features are

• How the system ensures user privacy

Which usability principle focuses on minimizing errors and providing help to users?

• Feedback

• Error Prevention

• Satisfaction

• Flexibility

What is “affordance” in the context of HCI?

• The cost of implementing a design

• The perceived and actual properties of an object that determine how it could be used

• The aesthetic quality of a user interface

• The difficulty level of a task

In usability testing, what does the term “task completion rate” measure?

• The number of tasks completed per session

• The number of user errors during a task

• The total time taken to complete a task

• The percentage of tasks completed successfully by users

What is “cognitive load” and why is it important in HCI?

• The amount of mental effort required to perform a task; important to reduce it for better usability

• The physical strain on the user; important to consider for ergonomics

• The load time of a system; important for performance

• The complexity of code; important for development

What does “feedback” in HCI design refer to?

• Comments from users on the design

• System responses to user actions that inform them of the results

• Error messages displayed to the user

• Suggestions for future improvements

What is the purpose of a “persona” in user-centered design?

• To represent a typical user type to guide design decisions

• o create a detailed user manual

• To outline the technical specifications of a system

• To map out the user journey through the system