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Accessibility and usability

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Accessibility and usability

  1. 1. Accessibility and Usability ofWebsite
  2. 2. DEPARTMENT OF CHIEF MINISTER
  3. 3. Accessibility andUsability and itsMethods
  4. 4. 211,945 people living in Northern Territory Australia― ABS 2013
  5. 5. 51.7 % are male48.3 % are female
  6. 6. 21.9% are people who’sage is 50 and aboveMajority of people are with disabilities thathas unpaid assistance.
  7. 7. ACCESSIBILITYis very important for governmentwebsiteTherefore,
  8. 8. Is your websiteaccessible?
  9. 9. Australian LegalRequirements forAccessibility
  10. 10. Required to submit to― Australian Government Web GuideReports and updatesOOC and SIGB incompliance to WCAG 2.0guidelines
  11. 11. Access to information, communications and services,including internet, is a human right.― Australian Government Web Guide
  12. 12. AccessibilityGuidelines
  13. 13. WAI AccessibilityGuidelines and Techniques• Authoring Tool AccessibilityGuidelines (ATAG)• User Agent AccessibilityGuidelines (UAAG)• Web Content AccessibilityGuidelines (WCAG)― Henry 2006
  14. 14. Four Principles of WCAG 2.0• Perceivable• Operable• Understandable• Robust
  15. 15. Manual EvaluationExperts examine each pages of the websiteand gives feedback(Hassanzadeh and Navidi 2010)
  16. 16. Automatic EvaluationHas tools that scan and evaluateeach pages that corresponds to W3CGuidelines or DDA(Hassanzadeh and Navidi 2012)
  17. 17. User ExperienceExperts will provide the users a series of tasks to perform andonce the user operated the website, difficulties or confusionstarts to appear.(Hassanzadeh and Navidi 2012)
  18. 18. Discount Accessibility MethodIt is a combination of automatic and manual method.(Hassanzadeh and Navidi 2012)
  19. 19. Fully Integrated Accessibility MethodCombination of all methods that involvesexperts
  20. 20. Usability
  21. 21. How users use web― Steve Krug 2006
  22. 22. We don’t read pages.We scan them.
  23. 23. We don’t make optimal choices.We satisfice.
  24. 24. We DONT figureout how things work.We muddle through.
  25. 25. International UsabilityStandards
  26. 26. Promotes bestpractice, independent, encouragesconsistency and it means business.― Travis 2008
  27. 27. Dimensions of Usability• Efficiency• Effectiveness• Satisfaction― Preece, Rogers, Sharp 2012
  28. 28. Krug’s Law of Usability
  29. 29. Don’t Make Me Think―Steve Krug 2000
  30. 30. It doesn’t matter how manytimes I have to click―Steve Krug 2000as long as each click ismindless, unambiguous choice
  31. 31. Omit Needless Words―Steve Krug 2000
  32. 32. Evaluation
  33. 33. Analytical Evaluationusually performed by experts and nousers involved―Te’eni, Carey & Zang2007
  34. 34. Analytical Evaluation Techniques• Heuristic Evaluation• Guideline Review• Cognitive Walk-Through• Pluralistic Walk-Through• User mode-based Analysis• Framework based Inspection―Te’eni, Carey & Zang2007
  35. 35. Empirical EvaluationInvolves users and gatheringinformation on how users interact tothe computer or system―Te’eni, Carey & Zang2007
  36. 36. Empirical Evaluation Techniques• Survey or Questionnaire• Interview• Lab-Controlled Experiment• Field Studies―Te’eni, Carey & Zang2007
  37. 37. Assessing the Departmentof Chief Minister Website
  38. 38.  Recollect & Reflect Need Finding Resources Participants Pilot Testing User Testing

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