03 Human-Computer Interface (HCI)

Question 1

Name factors to consider when designing a user interface (for instance, a software application or a website).

Answer 1

• Clear navigational structure
• Consistency of signposting
• On screen help
• Layout appropriate to task
• Differentiation in user expertise
• Differentiation for professionals vs consumers
• Customisable by the user
• Design reflects organisations house style and ehtos.
• Can be used by disabled
• Can be used by young children
• Consider location of where the interface will be accessed.

Question 2

Clear navigational structure is a factor to consider when designing what?

Answer 2

A user interface.

Question 3

Consistency of signposting is a factor to consider when designing what?

Answer 3

A user interface.

Question 4

On screen help is a factor to consider when designing what?

Answer 4

A user interface.

Question 5

Layout appropriate to task is a factor to consider when designing what?

Answer 5

A user interface.

Question 6

Differentiation in user expertise is a factor to consider when designing what?

Answer 6

A user interface.

Question 7

Differentiation for professionals vs consumers is a factor to consider when designing what?

Answer 7

A user interface.

Question 8

Customisation by the user is a factor to consider when designing what?

Answer 8

A user interface.

Question 9

Design reflects organisations house style and ethos is a factor to consider when designing what?

Answer 9

A user interface.

Question 10

Can be used by disabled people is a factor to consider when designing what?

Answer 10

A user interface.

Question 11

Can be used by children is a factor to consider when designing what?

Answer 11

A user interface.

Question 12

Location of where the interface will be accessed is a factor to consider when designing what?

Answer 12

A user interface.

Question 13

Give an example of clear navigational structure on a website.

Answer 13

• The user should be able to navigate without needing to read separate instructions, for example, forward/back buttons on a website should be clearly labelled and in the same place on every webpage
• The design should guide the user through a task, such as booking a holiday in a logical series of small steps.

Question 14

The user being able to navigate without needing to read separate instructions is an example of what?

Answer 14

A clear navigational structure.

Question 15

The design guiding the user through a task is an example of what?

Answer 15

A clear navigational structure.

Question 16

Define ‘consistency of signposting’?

Answer 16

Users should never wonder what to do next. All buttons and menus should appear in the same place throughout the design. This is intuitive for the user.

Question 17

Users never left wondering what to next is the definition of what?

Answer 17

Consistency of signposting

Question 18

Factors important when designing a software interface for young children are?

Answer 18

• Minimal text
• Use of bright colours
• Use of speech synthesis so words can be heard as well as read
• Minimal use of keyboard.

Question 19

Minimal text is an important factor to consider when designing a software interface for who?

Answer 19

Young children.

Question 20

Use of bright colours is an important factor to consider when designing a software interface for who?

Answer 20

Young children.

Question 21

Use of speech synthesis is an important factor to consider when designing a software interface for who?

Answer 21

Young children

Question 22

Minimal use of keyboard is an important factor to consider when designing a software interface for who?

Answer 22

Young children.

Question 23

Factors that are important when designing an interface for a user of CAD software?

Answer 23

• The user should be able to customise the interface
• Use of pull-down menus to maximise available workspace
• Use of specialised input devices like 3D mouse, graphics pads and large touch screen.
• Most commonly used menu items should appear at the top.

Question 24

User being able to customise the interface is an important factor for who?

Answer 24

A user of CAD software

Question 25

The use of pull-down menus to maximise available work space is an important factor for who?

Answer 25

A user of CAD software

Question 26

The use of specialised input devices is an important factor for who?

Answer 26

A user of CAD software

Question 27

Most commonly used menu items appearing at the top is an important factor for who?

Answer 27

A user of CAD software.

Question 28

Factors that are important when designing an interface for a disabled user.

Answer 28

* Large fonts for the visually impaired. * Speech recognition and text to speech translation for people with restricted movement. * Visual messages on screen instead of sound for the deaf * Subtitles for video content for the deaf * Use of correct colour schemes for colourblind people, so not placing red/green together. * Use of high contrast between text and background * Use of braille keyboard for the blind * Avoid the use of captcha or similar authentication checks that may be difficult to read.

Question 29

Large fonts is an important factor to consider when designing an interface for who?

Answer 29

The visually impaired

Question 30

Speech recognition is an important factor to consider when designing an interface for who?

Answer 30

People with restricted movement

Question 31

Visual messages on screen instead of sound is an important factor to consider when designing an interface for who?

Answer 31

Deaf people

Question 32

Subtitles for video content is an important factor to consider when designing an interface for who?

Answer 32

Dead people

Question 33

The correct use of colour schemes is an important factor to consider when designing an interface for who?

Answer 33

Colourblind people

Question 34

The use of high contrast between text and background is an important factor to consider when designing an interface for who?

Answer 34

Disabled people

Question 35

The use of a braille keyboard is an important factor to consider when designing an interface for who?

Answer 35

Blind people

Question 36

Avoiding using captcha or similar authentication checks that may be difficult to read is an important factor to consider when designing an interface for who?

Answer 36

Disabled people

Question 37

Describe how a well designed HCI can satisfy needs of an adult novice user of a software application.

Answer 37

* HCI design for a novice user should prioritise ease of use * The novice user will need a clear navigational structure throughout the application, for example, hyperlinks and menus. * A consistent colour scheme will help with signposting * A novice user will prefer wizards rather than selecting items individually. * A novice user will need screens and tutorials to get them started and overcome difficulties.

Question 38

What should prioritise ease of use?

Answer 38

HCI design for a novice user

Question 39

Who will need a clear navigational structure throughout the application?

Answer 39

An adult novice user

Question 40

What will help with signposting?

Answer 40

A consistent colour scheme

Question 41

A consistent colour scheme will help with what?

Answer 41

Signposting.

Question 42

Who would prefer wizards over selecting items individually?

Answer 42

A novice user

Question 43

Who will need screens and tutorials to get them started and overcome difficulties?

Answer 43

A novice user.