Fundamental Principles of User-Interface Design
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Fundamental Principles of User-Interface Design

Explore the basic concepts behind user interface design focusing on Human-interface objects (HIOs) like documents, buttons, menus, folders, and icons. Understand the importance of designing user-friendly interfaces with elements that are easy to manipulate and understand.

Created by
@UndauntedBinary

Questions and Answers

What term is used to describe the characteristic where the appearance of a specific control suggests its function?

Affordance

Which of the following is NOT considered a Human-Interface Object (HIO)?

Files

In user-interface design, what does visibility refer to?

The availability of controls to users

Which characteristic of HIOs ensures that they should provide immediate feedback when activated?

<p>Feedback</p> Signup and view all the answers

What is the purpose of affordance in user-interface design?

<p>To suggest the function of a control through its appearance</p> Signup and view all the answers

What can lack of feedback leave the user wondering about?

<p>Whether the command or input was recognized</p> Signup and view all the answers

Why is consistency important in user experience?

<p>To enhance the effectiveness of the user experience</p> Signup and view all the answers

What is a common issue with readability on small mobile devices?

<p>Difficulty in reading text due to screen size</p> Signup and view all the answers

What is a method designers can use to document dialogue designs?

<p>Imagining user-system interactions as conversations</p> Signup and view all the answers

Why are consistency across applications now expected by users?

<p>To enhance the user experience and reduce cognitive load</p> Signup and view all the answers

Study Notes

Human-Interface Objects (HIOs)

  • HIOs are objects on a screen that users can manipulate, such as documents, buttons, menus, folders, and icons.
  • HIOs are commonly used in most applications, including the Microsoft Office Suite.
  • A characteristic of HIOs is affordance, which means that their appearance suggests their function.
  • For example, a control that looks like a steering wheel suggests that it is used for turning.

Visibility and Feedback

  • Visibility means that a control is visible, and users know it is available.
  • Feedback is a visual or audio response by the system in response to user action.
  • Feedback provides users with a sense of confirmation and indicates that the system is responsive and functioning correctly.
  • Lack of feedback leaves users wondering if a command or input was recognized or if the system is malfunctioning.

Consistency

  • Consistency is essential in various aspects of the user interface and the application.
  • Users expect consistency across different screens of an application and across applications.
  • Consistency significantly affects the effectiveness of the user experience.

Readability and Navigation

  • Readability and navigation are crucial, but can be challenging to support, especially on small mobile devices.
  • Large desktop screens usually have good readability, but small mobile devices often have readability problems.
  • Large desktop screens have space for navigation clues, while small mobile devices may require hidden or partially hidden navigation tools.

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