Models/controls Flashcards
What is a system model
How the system actually works (code)
What’s the difference between the interface model and the user model
The interface model is what’s actually presented to the user.
User model is what the user thinks the interface does
What is visibility in terms of UI
Making apparent what can and can’t be done within the interface.
What is affordance in UI terms
Perceived/actual characteristics of an object.
Is the perceived affordance the same as actual affordance?
No, not always
Limitations on possible actions
Constraints
What are the three kinds of feedback
Visual, auditory, haptic
What is a description error and give an example
Is when one action replaced by another
When you accidentally click delete instead of save.
Which of the errors does this example describe:
When you want to walk to a coffee shop but end up on campus because that’s more familiar
Capture error- Intended action shifts into a more familiar one.
What are the three basic guidelines for design heuristics
User centered, Fitts law, memory
Name 4/7 principals of Jacob Nielsens heuristics of UI
Visibility of system status, match the real world, user control/ freedom, consistency & standards, error prevention, recognition over recall, flexibility and efficiency to use.
Why is recognition over recall important
It makes sure all information is available
(Give drop down menus instead of text boxes)
What is the principle of least surprise?
Similar things should behave the same way
True or false: a minimalist design is better then a maximalist one
True
What is the gestalt principal
Proximity and similarity
Elements closer together are grouped, elements that look the same are grouped
