damian gordon consider the users andrea curley. nature of user many different categories of users,...
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Damian Gordon
Consider the Users
Andrea Curley
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Nature of User
Many different categories of users, impossible to consider all
Can you group users?
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User Groups
Users vary with respect to:–Computer skills & knowledge
–Age
–Disabilities
–Culture
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Computer Skills & Knowledge
Nondiscretionary users vs. discretionary users
Novice vs. expert
What design rules could be employed for each of these categories?
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Age
Ageing user vs. young user
What effect will they have on interface design?
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Impairments due to age
vision
hearing
mobility
memory
Loss of confidenceDifficulty in orientation
Absorption of information
Age: Ageing User
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Design Guidelines (Hawthorn, 2003) Design Guidelines (Hawthorn, 2003) –Simplify screen design–Provide users with simple linear search spaces with few options–Increase size of fonts and controls–Reduce both windows management tasks and scrolling–Ensure contrast between text and background–Menus can introduce problems, toolbars may be an alternative
Age: Ageing User
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–Active learners drawing on physical and social experiences
–Learn by doing
–Require something that they can see, touch and hear
–Prior to the age of 8, children rely on visual and auditory perception for knowledge
–Learning is through first hand experience
Age: Young User
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Age: Young User
Design Guidelines (Wyeth & Purchase, 2003):Design Guidelines (Wyeth & Purchase, 2003):– Activities are open-ended and discovery-oriented–Interaction encourages child-initiated play–Involve active manipulation and transformation of real materials–Entry-level knowledge and skill is kept to a minimum–Provision is made for children’s varied skill and ability levels–Construction activities that involve design, creation and evaluation processes form the basis of interactions
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Disabilities
• Physically disabled• Cognitively disabled
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Disabilities: Physically Disabled
• Impairments can include lack of mobility, low vision, blind and hearing
• Alternative channels of interactions:• Speech recognition• Tune recognition• Lip-reading• Body-electric sensors
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Design Guidelines (Nielsen, 1995)Design Guidelines (Nielsen, 1995)• Provide keyboard access to application features
• Follow key-mapping guidelines or the local environment
• Avoid placing frequently used functions deep in a menu structure
• Do not hard-code colours, graphics, or font sizes and styles
• Provide visual information that is redundant with audible information
• Allow users to configure frequency and volume of audible cues
Disabilities: Physically Disabled
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• Examples of cognitive impairments would be learning disabilities, dyslexia and poor memory
Disabilities: Cognitively Disabled
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• Lewis (2004) made the following observations on these users:
• Social inclusion is most important
• Access to information is critical to social inclusion and increasingly reliant on technology
• Some research shows that these users have the same problems with web-sites as other users but with greater severity
• Access to textual information is difficult
Disabilities: Cognitively Disabled
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• Characters, numerals, special characters, and diacriticals • Left-to-right versus right-to-left versus vertical input and reading • Date and time formats • Numeric and currency formats • Weights and measures • Telephone numbers and addresses • Names and titles (Mr., Ms., Mme.) • Social-security, national identification, and passport numbers • Capitalization and punctuation • Sorting sequences • Icons, buttons, colors • Pluralization, grammar, spelling • Etiquette, policies, tone, formality, metaphors
Culture
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Exercise 2
Draw a picture of how you would create a hands-free brolly which could be used with a buggy or pram.
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Exercise 2: A solution …..
http://www.handsfreebrolly.co.uk/
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References
Wyeth, P. & Purchase, H. (2003) Using Developmental Theories to Inform the Design of Technology for Children
Hawthorn, D. (2003) How Universal is Good Design for Older Users
Lewis (2004) ‘And When Did You Last See Your Father?’ Exploring the views of children with learning difficulties/ disabilities. British Journal of Special Education, 31(1), 4-10.
Nielsen, J. (1995) Advances in Human-Computer Interaction
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Thank You