L8 - User Interfaces

Question 1

What is UI?

Answer 1

• The point where a user interacts and communicates with a device
  
  • GUI - Graphical User Interface
  • CLI - Command Line Interface
  • VUI - Voice User Interface

Question 1

What is a CLI?

Answer 1

• Command Line Interface
• Text based interface
• User interacts with a sys via lines of text
• Shell
  
  • Text based user interface to access an OS services
  • CMD
  • Terminal
  • Bash

Question 2

List the qualities of a good interface

Answer 2

1. Clear
2. Useable
3. Preventative
4. Consistent
5. Recoverable
6. Responsive

Question 3

What makes a clear UI?

Answer 3

Clear - interface avoids ambiguity by making everything clear through language

Question 4

What makes a useable UI?

Answer 4

Useable - The design of the sys = easy and simple to use

• Length of user input
• Layout of info
• Amount of info

Question 5

What makes a preventative UI?

Answer 5

Preventive - There should be measures to prevent in-appropriate task

• Involves validating user input and display appropriate error messages

Question 6

What make a consistent UI?

Answer 6

Consistent - Use the same letters, characters, sentence structure and colour scheme

Question 7

What makes a recoverable UI?

Answer 7

Recoverable - Should be able to recover when an error is made (exception handling)

Question 8

What makes a responsive UI?

Answer 8

Responsive - Should provide good feedback to the user about whats happening

• To signal successful or unsuccessful processes