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5260_5Designing for the User (Design Method (• Memory (• Sensory memory, •…
5260_5Designing for the User
Design Objectives
Enhance human abilities
Overcome human limitations
Attract user acceptance
Ergonomics and Human Factors
Percentiles
Design Criteria
Design Method
• Power law of practice (learning curve)
• Fitts Law
• Hick-Hyman law
• Information Processing
Time-Sharing
Performance-Resource Function (PRF)
• Postural Laws
• Memory
• Sensory memory
• Short-term memory
• Long-term memory
Handle Fundamentals
• Avoid extreme or awkward joint postures
• Avoid high contact forces and static loading
• Avoid repetitive finger action
• Avoid tool vibration
Technology in Design
Materials in Design