3 Accommodation of Human Diversity

1.

Physical Abilities

• Physical size and strength of individuals
• Size of hands
• Response of the eye to color, brightness, flicker, contrast, motion, depth

2.

Physical Workplaces

• Work-surface and display support height
• Clearance under work surface for legs
• Work-surface width and depth
• Adjust-ability of heights and angles for chairs and work surfaces
• Posture-seating depth and angle; back-rest height and lumbar support
• Availability of arm-rests, foot-rests and palm-rests
• Use of chair casters

3.

Cognitive and Perceptual Abilities

• Short-term memory
• Long-term memory
• Learning and problem solving
• Decision making
• Attention and scope of concern
• Search and scanning
• Time perception
• Arousal and vigilance
• Fatigue
• Perceptual load
• Knowledge of results
• Monotony and boredom
• Sensory deprivation
• Anxiety and fear
• Isolation
• Aging
• Drugs and alcohol
• Circadian rhythms

4.

Personality Differences

• Myers-Briggs Type Indicator
• Extroversion versus introversion
• Sensing versus intuition
• Perceptive versus judging
• Feeling versus thinking

5.

Cultural and International Diversity

• Characters, numerals, special characters and diacriticals
• Left-to-right versus right-to-left versus vertical input
• Date and time formats
• Numeric and currency formats
• Weights and measures
• Telephone numbers and addresses
• Names and titles
• Numeric identifiers (social-security, national id, passport, driver's license)
• Capitalization and punctuation
• Collating sequences
• Icons, buttons and colors
• Pluralization, grammar and spelling
• Etiquette, policies, tone, formality, metaphors

6.

Users with Disabilities

• Vision impairment
• Hearing impairment
• Other impairment

7.

Elderly Users

• Visual and auditory decline
• Strength and speed of response
• Perceptual ability