Best Practices in Accessible UX Design for Mobile


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uxWaterloo presentation on best practices and heuristics for designing accessible user experiences for mobile devices.

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  • Preamble:Your previous design + usability + IA experience matters.Following the best practices do result in better products.Accessibility also resolves situational impairments.Not limited to mobile, universal truths.
  • Benefits:People already know how to use native controls.Makes it easier to work with assistive technologies.Universal Design Benefits:Allows users to use various input methods.Saves re-work time down the road.
  • Recommendation:Minimum is 4.5:1, I’d recommend 10/11:1 or as great as possible.Benefits:¼ of men are red:green colourblindUniversal Design Benefits:Use colours to reinforce brand, action controls, etc.Helps reduce glareDepending on the screen type, extends life of a screen, etc.
  • Benefits:Helps people with TremorsHelps people with eye-hand coordination difficultiesHelps people with upper limb impairmentsSituational Impairment Benefits:Benefits people wearing glovesBenefits people carrying multiple bags and using their mobile
  • Benefits:Can help improve task effectivenessHelps customers with mobility impairments, RSI, etc.Helps customers with vision loss (blind, partially sighted)Universal Design Benefits:Helps reduce spread of infectious diseasesFacilitates multitasking, eyes-free hands-free use cases
  • Active Voice - Writing in the active voice means constructing sentences where the subject “acts”:Examples:The wedding planner is making all the reservations. (active)All the reservations will be made by the wedding planner. (passive)
  • Reminder usability setups are artificial already, and likely nothing like the traditional lab environment
  • Best Practices in Accessible UX Design for Mobile

    1. 1. Accessible UX Design For Mobile uxWaterloo P2P Series December 10, 2013 Greg Fields, BlackBerry
    2. 2. Session Topics • About Greg • About Accessibility at BlackBerry • Top 10 Best Practices • Q&A
    3. 3. About Greg • Married (Heather), 1 son (Treye) • Product Management @ BlackBerry • Accessibility ‘Expert’ • Care sincerely about great user experiences
    4. 4. Accessibility at BlackBerry • Team initiated in 2003. • Distributed, yet Accessibility focused. • Active participants internally within the company, and externally within the disability community.
    5. 5. Top 10 Best Practices
    6. 6. #. Heuristic • Pearl of wisdom • Nugget of truth Screenshots
    7. 7. 5. Simplify to the Core ✔ ✔ • Peel away excess until just before it hurts the user experience. • Reduce Cognitive Load • Reduce Critical Reasoning Square Cash (iPhone) Clique (iPhone)
    8. 8. 6. Logical Order of Things ✖ ✔ • Chunking still matters. • Align visual and actual information layout. • Guide and assist. CircleMe (iPhone) Twitterrific (iPhone)
    9. 9. 7. Be Consistent ✖ ✔ MS Outlook (Android) Clique (iPhone) • Don’t make me think. • Avoid fighting with existing mental models. • Challenging when multiplatform.
    10. 10. 8. Manage Empty Data (or Errors) ✖ ✔ • Use active voice. • Be specific + obvious. • Prompt an accelerated resolution. Spotify (Android) BlackBerry Messenger (Android)
    11. 11. 9. Test with Humans • Choose right method(s). • Get in the wild! • Include Assistive Technologies and user needs in study plan.
    12. 12. 10. Plan for Success • Understand user needs. • Assume failure at first. • Allow for iterations. • Universal Design (initially) takes longer.
    13. 13. Questions?