quartz/content/notes/11-design-heuristics-2.md

title	tags
11-design-heuristics-2	info203 lecture

1 Show system status

• show system stats

• feedback depends on response time

  • <1s just show outcome
  • ~1s feedback that activity is underway

  • 1s show fractional progress time

• 0.1 seconds --> feels instantaneusly

• 1 second --> about the limit for flow to be uinteruippted

• 10 seeconds --> the limit for keeping users attention

when:

• when action is requried
• show storage space
• making changes
• next steps --> user input required
• completion --> some task has finished

2 familiar metaphors and language

imitating familiar real life

Categories

• good
  • 
• bad
  • 

3 user freedom and control

wan tt ogive th user the feelin thtey can freelyi explore the app and the freeodm to control i it

• general flow
• undo/redo

e.g., e.g.,