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Evaluate state
The Design of Everyday Things. Resume of the book by Donald A. Norman
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Donald A. Norman
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Evaluation
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Map Branches
Good design
Use Knowledge
In the world
In the head
Conceptual model
Designer's model
User's model
Intermediary
System Image
Structure of tasks
Simplify
Cognitive load
Reduce
Make things visible
Bring the gulfs
Of execution
Of evaluation
Mappings
Get'em right
Constraints
Exploit
Errors
Design for it
Recoverability
Unsafe actions
Difficult
Standardize
When all else fails
Goals
Form Goal
Determine functions of device ?
In front of a device, how can the user...
Mistakes
Wrong goal
Poor plans
Incomplete knowledge
Aids
System model
Organization metaphors
Procedure hints
Execution
Formulate Intention
Tell what actions are possible?
Mistakes
Wrong goal
Poor plans
Incomplete knowledge
Aids
Aid memoirs
Block unsafe actions
Clear controls
System simulation
Operational metaphors
Specify action
Map intentions to physical movements?
Mistakes
Wrong rules
Incorrect context
Aids
Device affordances
Prompts cues
Slips
Wrong procedure selected
Aids
Preselect safe actions
Difficult unsafe actions
Execute action
Perform the action?
Slips
Motor failures
Attention errors
Interruptions
Aids
Safety locks
Simplify manipulations
Fail safe
Prevent dangerous actions
Validate inputs
Evaluation
Evaluate state
Mistakes
Aids
Update system models
Situation awareness
Show implications of change
Poor reasoning
Incomplete knowledge
Tell system state ?
Interpret state
Slips
Aids
Clear messages
Repeat warnings
Perceptual
Mistakes
Aids
Clear feedback
Set change in context
Poor reasoning
Map state to interpretation ?
Recognize effects
Error correction cycle
Execute corrective action
Action checklists
Highlight appropriate controls
Automatic correction
Clear corrective controls
Plan corrective action
Warn of side-off effects
List remedial procedures
Diagnose cause
Infer reasons
Assumption checks
List possible causes
Display failure history
Interpret problem
Recognize feedback
Show hazard effects
Show containment
Salient warnings
Locate hazard
Slips
Aids
Multimodal warning
Clear messages
Salient warnings
Distractions
Perceptual slips
Tell if system is in desired state ?
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