Usability

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My presentation to my team on usability.

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Usability

  1. 1. Usability Testing the beginning of the experience Haobam Martin – Lead Web Designer, ANZ UX Design
  2. 2. Usability… What? Usability refers to the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of user. - ISO 9241-11
  3. 3. Usability… What? • Ease of learning • Efficiency of use • Memorability • Error frequency and severity • Subjective satisfaction
  4. 4. Usability… Why? • Users are impatient • More features the better • Even the best designer get it wrong • Competitors have it, lets have it • Complex online activities in everyday life • Usability is next to profitability
  5. 5. Interaction Visuals Techniques User’s Model
  6. 6. Self Actualization Esteem Love/Belonging Safety Physiological Maslow’s Hierarchy of Needs
  7. 7. If you want to make a revolution, you have to raise lowest common denominator Steve Jobs, Co-founder + CEO Apple
  8. 8. Usability… How? • Summative test • Formative test
  9. 9. When the cook tastes the soup, that’s formative; when the guests taste the soup, that’s summative Robert Stakes, University of Illinois
  10. 10. Usability… How? • Subjective • Qualitative • Objective • Quantitative Plan the test Collect data Analyse Conclusion Iterate
  11. 11. But How? • Early Prototype • Card Sort • Open card sort • Closed card sort • Paper Prototype • Wire framing • Contextual Interviews
  12. 12. But How? • User Analysis • Heuristics Evaluation • Surveys Online Observer Participants
  13. 13. But How? • User Analysis • Heuristics Evaluation • Surveys Online
  14. 14. How does usability fit? • On Visual Design • On layout • On terminology • On Messaging • On Navigation • On Task Flow • On Task Support
  15. 15. How does usability fit?
  16. 16. Questions?

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