C2 VISIBILITY Flashcards
Relevant parts of system should be visible (T/F)
True
- not usually a problem in the real world but takes extra effort in computer interfaces
Appropriate Affordances (What are they?)
Buttons & Links Drop-down arrows Texture Mouse cursor Highlight on mouseover
Make Commands Visible (What are they?)
Menus
Tooltips
Self-disclosure
Humans gathering information can be modeled like animals gathering food. What theory is this?
Information foraging theory
Constantly evaluating and making decisions to maximize information collected against cost of obtaining it. What theory is this?
Information foraging theory
Cues on a link that indicate how profitable it will be to follow the link to its destination.
Information scent
Modes isn’t necessarily be visible
False
- should be clearly visible such as Caps Lock / Drawing Palette
Attention focuses on one input channel (area of visual field) at a time
Spotlight metaphor
Visibility does not depend on Locus of Attention
False (Does depend on Locus of Attention)
Navigation State must be visible
True
Examples of Navigation State
Breadcrumbs
Pagination
Tabs
View State isn’t necessarily be visible
False
Types of View State
Selection highlight
Selection handles
Drag and drop
Actions must have immediately visible effects
True
Two Kinds of feedback
Low-level feedback
High-level feedback
