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Human Factors > Dynamic Displays > Flashcards

Dynamic Displays Flashcards

1
Q

Field of Vision

A

People can only focus on a small field of vision at a time which means they can only see a small section of the panel at any given time.

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2
Q

Frequency of Use

A

Most frequently used and important displays are close to the line of sight under normal viewing conditions. (Right in front of the user)

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3
Q

Sequence of Use

A

The order the displays are used because it takes time to move eyes and head to see several displays clearly.

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4
Q

No sequence?

A

Displays grouped by function.

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5
Q

Link Analysis

A

Technique used to assist in the design of display configurations.

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6
Q

Link

A

Connection between a pair of items indicating a certain relation between them.

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7
Q

If a display has a strong link..?

A

Displays with strong links should be located closer together than weak links.

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8
Q

First Step Link Analysis

A

Prepare a diagram that shows the interactions between the display components

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9
Q

Second Step Link Analysis

A

Examine all relations between the displays and establish link values in terms of the frequency of eye movements between the displays

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10
Q

Third Step Link Analysis

A

Develop an initial link diagram in which the displays are rearranged so that the most frequently used displays are located in close proximity in the central visual field

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11
Q

Fourth Step Link Analysis

A

Refine the diagram we created in the first step to make the final layout

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12
Q

Motion interpretability

A

How well a display represents the motion of an object (GPS showing car’s motion)

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13
Q

How to determine the best way to provide motion information?

A

Consider the frame of reference (GPS shows the car move through a stationary world or does the external world move around the stationary car?)

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14
Q

Head-up Displays (HUDs)

A

Most commonly used in airplanes and video games (google glass)

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15
Q

Helmet-mounted Displays (HMDs)

A

Similar to HUDs but without requiring the user to move their head.

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16
Q

Three Types of Warning Signals and

A

Advisories: general response
Cautions: rapid response
Warnings: immediate response

17
Q

Warning Signals

A

Display should show high-priority alert signals.
Near users line of sight.
Flashing easily detected
(Red for emergencies)

18
Q

Warning Signals and Labels most effective if…

A 
Describe the consequences of noncompliance
Have wide, colorful borders
Short and to the point
Salient and relevant to the user’s goals
Presented near the hazard
19
Q

Warning Signals and Labels least effective if…

A

The users are already familiar with the object or product to which the warning is affixed
Users do not perceive a risk associated with the use of an object

20
Q

Auditory Icons

A

Represents everyday sounds with stereotypical meanings. (Police car siren used for antivirus warning sound)

21
Q

Earcons

A

Brief, recognizable sequences of tones to provide information. (Receiving text message)

22
Q

Three-dimensional Displays

A

Can be made using auditory localized cues

23
Q

Dichotic Displays

A

When each ear receives different auditory information. (headphones)

24
Q

Speech Displays

A

Used to transmit slightly more complicated information.

25
Q

Why should voice be intelligible?

A

Grammatically and semantically correct sentences are understood more accurately than strings of unrelated words.

26
Q

When are speech displays substantially better?

A

When accompanied by a visual display.

27
Q

What happens when auditory and visual displays are combined?

A

Combining them often makes the speech intelligible. When presented alone or separate displays are unintelligible. (lip reading)

28
Q

What are tactile/haptic displays?

A

Rely on sense of touch
Great when visual and auditory info channels are overloaded
Can convey spatial information

29
Q

Tactile Display

A

Refers to any display where information is conveyed by sense of touch

30
Q

How can Tactile Displays be used?

A

May be powered or unpowered

Useful in dark environments and for people with visual impairments.

31
Q

Haptic Displays

A

Refers to displays that apply force, vibration, or motion to the user.

32
Q

How can Haptic Displays be used?

A

Used for alerting signals.

car seat that vibrates in direction of a crash threat

Human Factors (5 decks)

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