Test 2 Display of Info

Question 1

Use an auditory presentation when:

Answer 1

the message is simple, short, will not be referred to later, deals with events in time, requires immediate action, the visual system of the person is overburdened, receiving location is too dark or light, person’s job requires continual motion.

Question 2

Use a visual presentation when:

Answer 2

the message is long, complex, will be referred to later, deals with location in space, does not call for immediate action, if the auditory system of the person is overburdened, receiving location is too noisy, person’s job allows staying in one place.

Question 3

Static displays

Answer 3

Are fixed, do not change. ex: road signs

Question 4

Dynamic displays

Answer 4

Change over time. ex: speedometer More complex than static displays. Have some static features, such as ticks on speedometer. So principles of static displays apply as well.

Question 5

Conspicuity

Answer 5

how well the display attracts attention

Question 6

visibility

Answer 6

how well the display can be seen

Question 7

emergency vehicles

Answer 7

Lime yellow best color, solomon and king found in 1997, that humans are maximally sensitive to this color

Question 8

legibility

Answer 8

the ease with which the symbols and letters present in the display can be discerned, i.e. how easy it is to distinguish individual letters/symbols so that they can be recognized. Think Mario and pixels. Influenced by factors like size of the letters, stroke width of the lines comprising letters, font
Legibility for images on computer displays are affected by the pixel density

Question 9

legibility distance

Answer 9

is the distance at which a person can read the display. Good contrast increases legibility distance
Ex. Fluorescent street signs are more legible than non-fluorescent street signs of the same color in both daylight and night time conditions

Question 10

readability

Answer 10

concerns larger groups of characters (e.g. words, sentences) in which comprehension of the material is a consideration

Question 11

intelligibility

Answer 11

describes how the message in the display should be unambiguous and include information about consequences if ignored

Question 12

maintainability

Answer 12

be constructed of appropriate material for the environment

Question 13

alphanumeric display

Answer 13

are any display that uses words, letters, or numbers to convey information
Very common
Drawbacks:
Some letters and digits share many features and are easily confused with each other
The person viewing the display is assumed literate
Must keep in mind legibility and readability

Question 14

overall density

Answer 14

the number of characters shown over the total area of the display

Question 15

local density

Answer 15

the density in the region immediately surrounding a character

Question 16

grouping

Answer 16

related to the Gestalt organizational principles

Question 17

layout complexity

Answer 17

extent to which the layout is predictable

Question 18

symbolic displays

Answer 18

used to convey information using an image, typically concrete objects can be drawn, More complex or abstract concepts are not so easy to represent symbolically
Good for overcoming a language barrier
Best if standardized

Question 19

absolute judgment

Answer 19

refers to the classification of a stimulus when several options are available. Ex. Deciding that a signal is “high” when the options are high, medium, or low
If the stimulus varies on a single dimension, people can discriminate between 5 and 7 stimuli

Question 20

color coding

Answer 20

is a method that can be very effective Especially when the color is unique and Can be used to distinguish between different levels and kinds of information
and Allows people to focus on one thing because they can ignore the other colors