Design Displays Principles
1. Perceptual Principles (5)
Description
a. Legible/Audible
Description
b. Avoid Absolute Judgement Limits
7+/-2 levels along one dimension
Relative Judgment
Using judgement based on perception
  • visual comparing
Absolute Judgement
Memory based judgement
  • A lot harder, we have a limit
c. Top Down Processing
Lists
  • Reaction Time 
  • Slower/Faster
  • based on expectations
A checklist. 
d. Redundancy Gains
ONE OF THE MOST IMPORTANT PRINCIPLE
  • Redundancy is a good thing
  • Redundancy Benefit
  • Ex: Stop Signs: Shapes, Color, Words, Location

e. Similarity Causes Confusion

When two things are similar they can confuse you (Ex. confusions on graphs --- vs ___ )

2. Mental Model Principles
 
f. Pictoral Realisim
- Do not want user to have mentally rotate maps and such
g. Principles of Moving Parts
Navigation, when you turn a know the strings adjust accordingly
Ex. Moving scale analog display with redundant digital presentation
3. Attention-Based Principles
Description
h. Minimizing Information Access Cost
Time, error, etc...
i. Proximity Compatibility Principle
  • If you need to integrate information from multiple resources then the display should be integrated
  • If information does not need to be integrated then the display should not be integrated
  • Hexagon example, redundancy in integrated display
j. Principle of Multiple Resources
  • At least four different dimensions
  • Should use different sources
4. Memory -Related Principles
Description
k. Knowledge in the World
What you see is what you need; you don't need to know a lot of information.
l. Principle of Predictive Aiding
Checklist
m. Principle of Consistancy
Change secondary control
Heads Up Displays (HUD)
Pros
  • Minimizes information access cost
Cons
  • Violates proximity compatibility (don't need to integrate speed & road)
  • Violates principle of consistency
  • Makes clutter
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