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61 lines
1.1 KiB
Markdown
61 lines
1.1 KiB
Markdown
---
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title: Lecture 11 Design Heuristics 2
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sr-due: 2022-04-08
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sr-interval: 3
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sr-ease: 250
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---
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#review
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---
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# Lecture 11 Design Heuristics 2
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## 1 Show system status
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- show system stats
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- feedback depends on response time
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- <1s just show outcome
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- ~1s feedback that activity is underway
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- >>1s show fractional progress time
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- 0.1 seconds --> feels instantaneusly
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- 1 second --> about the limit for flow to be uinteruippted
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- 10 seeconds --> the limit for keeping users attention
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when:
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- when action is requried
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- show storage space
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- making changes
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- next steps --> user input required
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- completion --> some task has finished
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## 2 familiar metaphors and language
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imitating familiar real life
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Categories
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- good
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- 
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- bad
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- 
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## 3 user freedom and control
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wan tt ogive th user the feelin thtey can freelyi explore the app
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and the freeodm to control i it
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- general flow
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- undo/redo
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e.g., 
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e.g., 
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