1. Acessibilidade Móvel Soluções para Deficientes Visuais Hugo Nicolau [email_address]

3. ‘‘ ’’ Never doubt that a small group of committed people can change the world. Indeed it is the only thing that ever has . — Margaret Mead

4. We have the whole world in our hands.

5. SMS have had an enormous growth in the last few years.

6. Mobile devices can do anything.

7. A common image for me.

8. What about the Others ?

9. Some can only see this.

11. They are too heavy .

12. They are too big .

13. They are too expensive ...

14. And definitely not mobile .

16. Can speech synthesis replace visual feedback ?

20. Despair and drop out.

22. User Observation

23. Survey users’ habits and capacities User characterization Mobile Device usage User Observation

24. All dial numbers All have a cell phone 2 users stated difficulties with keypad Not a priority

25. 50% of the users can send messages … but 80% have a Screen Reader Difficulties with menu navigation and.. ...voice feedback

26. Half the users use the contact list Memorize the contact position

27. T h e Goal Mobile Device Control for Blind Individuals

28. Design Guidelines

29. G1 communicate through available channels

30. G2 low cognitive load

31. G3 focus on acquired capabilities

32. G4 minimize stress scenarios

33. G5 adapt the interaction processes to the user

34. G6 allow and stimulate performance improvement

35. G7 available, adaptable and affordable

36. Calls Info Dial Accept Reject

37. SMS Write Read Send Receive

38. Contacts Calendar Notebook

40. Keep it Simple.

41. BrailleTap NavTap NavTouch

42. B C D F G H J K L M N P Q R S T V W X Y Z A E I O U

43. A B C D E F G H I J L M N O P Q R S T U V X Z

44. A B C D E F G H I J L M N O P Q R S T U V X Z

45. A B C D E F G H I J L M N O P Q R S T U V X Z A BCD E FGH I JLMN O PQRST U VXZ

46. We can navigate in any direction.

47. A BCDEFGHIJLMNOPQRSTUVX Z

48. A B C D E F G H I J L M N O P Q R S T U V X Z

50. A B C D E F G H I J L M N O P Q R S T U V X Z

52. A B C D E F G H I J L M N O P Q R S T U V X Z

53. No wrong choices. Just shorter paths.

54. No memorization required.

56. (Almost) all mobile devices.

57. NavTouch

59. BrailleTap A Q B R

62. Invert Space Delete Back Menu Go

63. Al a g e h i Automatic Word Finishing Letter Prediction System Context Dictionaires

64. Vídeo

67. User Evaluation NavTap Method Raquel and Martin Sain Foundation Excellent learning curve compared with MultiTap Easy to learn

68. User Evaluation NavTouch Method Raquel and Martin Sain Foundation Easy and Fun Shorter paths than NavTap

69. User Evaluation Braille Matrix Method Raquel and Martin Sain Foundation Better than Vowel Navigation for braille experts (> 3 WPM) Requires Braille knowledge

70. Session Rate Error Rate

71. Minimum String Distance Error Rate Session Rate

72. Keystrokes per Character Session KSPC

73. Words Per Minute Session WPM

74. Remarks All the users were satisfied Improved performance All succeeded Before BloNo: 50% weren’t able to write text Wrote text Managed Contacts Navigated menus

75. The Future Gestural Shortcuts Long Term Studies Usability Issues

76. Kevin Clarkson Martin Rotovnik

77. Acessibilidade Móvel Soluções para Deficientes Visuais Hugo Nicolau [email_address]