Chris Johnson, Index

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Leveson's Completeness Criteria

• Human Computer Interface Criteria.
  
  
• Criteria depend on task context.
  
  
• Eg in monitoring situation:
  - what must be observed/displayed?
  - how often is it sampled/updated?
  - what is message priority?
  
  
• Not just when to present but also
  - when to remove information...

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