Week 1: Safety-critical Designs Flashcards
Making displays legible (or audible)
if the characters objects or sounds being displayed are not visible, then the operator cannot effectively make use of them
Top down processing
- perceiving the world around us by drawing from what we already know in order to interpret new information
- people perceive and interpret signals according to their past experiences
ex. light switch in Canada vs. UK, search bar on Safari
Redundancy gain
presenting a signal in more than one way increases the likelihood it will be interpreted correctly
ex. windows search for apps
Minimizing information access cost
ex. remote or car with too much buttons
Design for Diversity
- accessibility
- differences in languages
- screen size
Accessibility
ex. limited vision, hearing, speech, cognition, mobility and manual dexterity, multiple disabilities
Hue (colour)
observers can rapidly differentiate between only 5-10 hues
Information Visualization
12 colours (6 + 6) is recommended
Heatmaps
which part of the website users look at the most
When we scan
we “scan” content on the web before we read
Grids
- are useful in helping users scan content with more ease
- between 12-16
Gradient
- not always cool, but if used properly it can enhance UX
- lighting can make all the difference
ex. to make buttons stand out
Typography
too many fonts and poor type hierarchy is a common UX problem
ex. Lings car rentals breaks all these rules
User Interface (UI)
the screens, keyboards, mouse, buttons, toggles, icons, and other visual elements that you interact with when using a website/app
User Experience (UX)
the entire interaction you have with a product, including how you feel about the interaction
