Disabled ‘R’ All: Bridging the gap between Accessibility and Usability
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Disabled ‘R’ All: Bridging the gap between Accessibility and Usability
- 1. Disabled ‘R’ All Bridging the gap between Accessibility and Usability Hugo Nicolau hman@vimmi.inesc-id.pt
- 5. @ Home
- 6. @ Work
- 7. Outdoors
- 8. In car
- 10. @ Subway
- 11. @ Airplain
- 12. And many many others …
- 13. Many contexts CONTEXT
- 14. Overload
- 15. Leading to … SIID
- 17. Loss of physical stability
- 18. Motor impaired
- 20. Do they benefit from … Similar solutions?
- 21. Goal
- 22. Hypothesis “ Solutions designed for motor-impaired users can be applied on mobile devices by assessing the users’ capabilities within real mobile contexts and thus enhancing their performance ”
- 23. Knowledge sharing and reuse
- 25. More and better research
- 27. New connotation
- 28. RELATED WORK
- 31. Brewster, 2002 + 17% workload -32% data entered
- 32. Lin et al., 2007 Error rate 65% - 3%
- 33. Schedlbauer et al., 2007
- 34. Schildbach et al., 2010
- 35. Mizobuchi, 2005
- 36. Dealing with SIID (Harrison et al., 2010) (Mistry et al., 2009) (Sawheny and Schmandt, 2000) (Wigdor and Balakrisham, 2003)
- 37. Karlson, 2007; Baudisch, 2009 ThumbSpace (Karlson and Bederson, 2007) (Baudisch and Chu, 2009)
- 38. Context-aware interfaces (Kane et al., 2008)
- 39. Alternative techniques (Yatani and Troung, 2009)
- 40. Gesture interfaces (Yfantidis, 2006) (Bach, 2008) (Guerreiro, 2009) (Goldberg, 1993)
- 42. Target selection
- 43. Text-entry
- 44. Increase size
- 45. Evaluation
- 46. Still in its infancy
- 48. Dropping and long press Dropping Long press > ffffffffffffff (Brown, 1992)
- 49. Bounce and additional press Additional Bounce (Vanderheiden, 1993; Edwards, 1995; Poulson et al. 1996)
- 50. Trewin, 1999 Transposed Remote Bounce Dropping Missing Additional Long 0 500 1000 1500 2000 2500 3000
- 51. Mouse manipulation (Riviere and Thakor, 1996; Hwang et al. 2004; Keates et al., 2005) Near misses Not-so-near misses Slips Accidental clicks Middle button press
- 52. Touch screens (Guerreiro et al., 2010)
- 54. Edge-based interfaces Barrier Pointing EdgeWrite (Froehlich et al., 2007) (Wobbrock et al., 2003)
- 55. Pointing SUPPLE Steady Clicks (Gajos et al., 2007) (Trewin et al., 2006)
- 56. Text-Entry solutions Filters Suggestion and configuration systems Word correction and prediction systems Alternative techniques
- 57. Filters Windows Sticky keys Slow keys OverlapKeys Repeat keys Mouse keys (Trewin, 2002)
- 58. Suggestion systems (Trewin and Pain, 1997) (Koester et al., 2007)
- 59. Word correction True Keys (Kane et al., 2008)
- 60. Alternative techniques Spread Keys (Merlin and Raynal, 2010) EdgeWrite (Wobbrock et al., 2003)
- 61. Discussion HIID
- 62. Greater focus on problems
- 64. Opportunities
- 65. APPROACH
- 68. Rather than … Ability
- 69. Touch screens
- 70. Preliminary studies (Guerreiro et al., 2010)
- 71. Tapping
- 72. Crossing
- 73. Exiting
- 74. Gesturing
- 75. Size 7 mm 12 mm 17 mm
- 76. Screen areas
- 77. Tapping
- 78. Size 12 mm 22%
- 79. Near support
- 80. Ability-design
- 81. Workplan How do users select Selection techniques for targets? touch screens Text-entry Text-entry Similar problems? errors (HIID) errors (SIID) What solutions? Development Similar solutions? Evaluation
- 82. Tapping How do users select Selection techniques for targets? touch screens Text-entry Text-entry Similar problems? errors (HIID) errors (SIID) What solutions? Development Similar solutions? Evaluation
- 83. Similar problems? How do users select Selection techniques for targets? touch screens Text-entry Text-entry Similar problems? errors (HIID) errors (SIID) What solutions? Development Similar solutions? Evaluation
- 84. Text-entry
- 86. HIID
- 87. SIID
- 89. What solutions? How do users select Selection techniques for targets? touch screens Text-entry Text-entry Similar problems? errors (HIID) errors (SIID) What solutions? Development Similar solutions? Evaluation
- 90. Three to five solutions Filters Configuration and suggestion systems Orthographic correctors Alternative techniques
- 91. Development
- 92. Similar solutions? How do users select Selection techniques for targets? touch screens Text-entry Text-entry Similar problems? errors (HIID) errors (SIID) What solutions? Development Similar solutions? Evaluation
- 93. Hypothesis validation “ Solutions designed for motor-impaired users can be applied on mobile devices by assessing the users’ capabilities within real mobile contexts and thus enhancing their performance ”
- 94. Most adequate solutions 100 Error rate (%) 2x 2x 0 Physical Impaired Situational Impaired Traditional Alternative
- 95. Expected contributions 1. Analysis of selection techniques 2. Identify text-entry difficulties for motor impaired users 3. Performance analysis whilst mobile 4. Mobile prototypes for text-entry tasks 5. User study with accessibility solutions 6. Guidelines for technology transfer
- 96. Expected Results 1. Similar selection techniques 2. Relationship between physical and situational impairments 3. Solutions can be transferred between user groups
- 97. Workplan
- 98. Expected publications 2010: Full paper – ASSETS’10 Short paper – Mobile HCI’10 2011: Doctoral consortium – ASSETS ‘11 Journal paper 2012: Full paper – ASSETS’12 Full paper – Mobile HCI’12 2013: Full paper – ASSETS’13 Full paper – CHI’13
- 100. Questions