Chapter 12 digital development considerations

Question 1

What does GUI stand for

Answer 1

Graphical user interface

Question 2

How does a GUI work

Answer 2

A GUI is a user interface that allows users to communicate with computers through WIMP

Question 3

What does WIMP stand for

Answer 3

Windows - it is an area on a computer that’s presented to the user.

Icon - it is a small picture presented to the user in the
screen. It represents a shortcut to a task or an application.

Menu - it groups similar or related tasks together. This allows the end user to locate related tasks in an intuitive way.

Pointer - it is an on-screen icon that moves around the screen in response to the users movements of the mouse.

Question 4

Name 3 advantages of a GUI

Answer 4

• it is intuitive and user friendly because icons use familiar images so the task can be recognised by the user.
• The user doesn’t need to understand how the computer operates in order to complete a task
• it is supported by shortcuts in the form of keystrokes to help increase speed of operation for experienced users.

Question 5

Name 3 disadvantages of GUI

Answer 5

• there is increased processing power, storage space and RAM are required to store a GUI
• there require more powerful graphics card to present a GUI than other interface types
• it can be restrictive and slow for experienced users.

Question 6

What is a real life example of a GUI

Answer 6

Microsoft Windows

MacOS

Question 7

How does a language interface work

Answer 7

It allows users to interact with the computer using a human language, such as English or Chinese, as opposed to using a computer language.

Question 8

What are 3 advantages of a natural language interface

Answer 8

• it is suitable for users with limited technical experiences as you don’t have to remember specialised commands
• it is suitable for users with limited movements to interact devices
• it supports hand free interaction

Question 9

What are 3 disadvantages of a natural language interface

Answer 9

• significant time has to be spent training interface to recognise voices
• The system only responds to voices it’s been trained to recognise
• instructions can be misinterpreted by the interface

Question 10

What is a real life example of a natural language interface

Answer 10

Siri

Question 11

How does a motion tracking interface work

Answer 11

It digitises your movements for use in computer softwares.

Question 12

Name 3 advantages of motion tracking interfaces

Answer 12

• it can help make interactions with the system more realistic for the user
• it allows inexperienced users to interact with applications in a natural way
• it supports interaction with users who have limited motor control

Question 13

Name 2 disadvantages of motion tracking interfaces

Answer 13

• it is a new technology so it is limited

- it is a high-end technology therefore expensive

Question 14

What is a real life example of a motion tracking interface

Answer 14

Vr systems

Question 15

How does touchscreen work

Answer 15

It works through the use of a stylus or using your fingers

Question 16

What are 3 advantages of touchscreen

Answer 16

• touchscreen reduces the need for additional hardware and increases the portability of the device.
• it uses intuitive actions such as tapping the screen to interact with the users
• it easily cleaned

Question 17

Name 3 disadvantages of a touchscreen

Answer 17

• if touchscreen is damaged interaction is affected
• small screens can make interaction difficult
• it is expensive

Question 18

What is a real life example of touchscreen

Answer 18

Modern day phones

Question 19

What does W3C stand for

Answer 19

World Wide Web consortium

Question 20

Who are the w3c

Answer 20

Is it an international standards organisation

Question 21

What do the w3c do

Answer 21

They aim to put standards into place to ensure the internet and mobile apps are accessible for all users.

Question 22

What does it mean to develop cross-platform applications

Answer 22

It means building a single application that work on different platforms instead of creating multiple applications

Question 23

Name 3 ways to improve cross-platform compatibility

Answer 23

• plugins, a software that adds functionality to existing application.
• pdf files, allows application to be viewed on any supporting platform
• optimised file formats, used to minimise the time taken to load the digital application.