Scientific
Approach (beyond user friendly)
§Specify users and tasks
§Predict and measure
(theory-driven, hypothesis-testing)
]time to learn
]speed of performance
]rate of human errors
]human retention over time
§Assess subjective
satisfaction
(Questionnaire for User Interface Satisfaction)
(Questionnaire for User Interface Satisfaction)
§Accommodate individual
differences
§Consider social, organizational
& cultural context
