Chapter 8 Flashcards
Successful displays consider…
task and cognitive capabilities
How big should letters be? (Real question: What is the most important factor?)
height
Multiple display principles (what to consider with display layouts)
frequently used displays, high on importance of use, related /sequenced displays together, be consistent in layout
Redundancy
Present the same information in multiple ways to decrease confusion (ex: position and hue on a stoplight)
Gestalt principles
Similarity causes confusion (use different symbols), keep displays related to similar tasks in close proximity
Labeling
Visibility and Legibility, Discriminability, Meaningfulness, Location
Parallax Issues
Changes in perceived location of an object against a background caused by the change in observer position (ex: misreading speedometer as passenger)
Steps in Display Design
- Determine users, task, and context of use
2. Determine informational needs and methods to convey info
Designing with color considerations
Don’t use different hues of the same color, keep color coding consistent, avoid too many colors, objects with identical colors tend to be associated together
Qualitative Displays
trend, rate of change, approximation
Quantitative Displays
precise numeric value
Check Displays
parameters in normal range
Haptic feedback benefits
very fast, breaks through noise, people like it
Limitations to icons/colors
International icon differences, International color differences
Don’t use auditory messages if…
person remains in one position, message does not call for immediate action, message is complex, message is long, message will be referred to later, auditory system is in use for the job, receiving location is noisy
