Chapter 3 - User modelling in UCSD

Question 1

Model Human Processor

Answer 1

Perception -> short term memory
‘cognitive processing’ long term memory
response

Question 2

Simplex one as simplistic theory

Answer 2

abstract working memory
^
Input Score <> Processing system <> Motor output store
^
long term assosiative store

Question 3

Design principles (6)

Answer 3

• learnability (learn system when we try new features)
• predicability (user must be aware of options on system and work out which are needed for desired action)
• consistency (look and feel of system should be consistent)
• flexibility (way user and system exchange information)
• recoverability (system can undo actions and let user recover from mistakes)
• responsiveness (rate of communication between system and user)

Question 4

Norman’s 7 Principles

Answer 4

• Use head knowledge and world knowledge
• Simplify structure of tasks
• Make things visible
• Get mappings right
• Exploit power of constraints
• Design for error
• When all else fails, standardize

Question 5

Schneideman’s 8 Golden Rules

Answer 5

• Strive for consistency
• Enable frequent users to use shortcuts
• Offer informative feedback
• Design dialogs to yield closure
• Offer error prevention and simple error handling
• Permit easy reversal of actions
• Support internal locus of control
• Reduce short term memory load