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Usability of Gestural Interfaces

As gestural interfaces become mainstream, they will change the way we work and play. Usability professionals will need new skills, new methods, and new ways of communicating ideas.
Presentation for Perth (Australia) UPA Chapter in Formation, September 2009.

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Usability of Gestural Interfaces

  1. 1. Usability of Gestural Interfaces<br />UPA Perth Chapter in Formation<br />September 2009 meeting<br />Barbara Thomas, Clarity Web Planning <br />barbara@claritywebplanning.com.au<br />1<br />
  2. 2. usability ofgestural interfaces<br />
  3. 3. what are we talking about?<br />what GIs will mean for:- users- developers<br /> - usability practitioners<br />conclusions<br />3<br />
  4. 4. what are we talking about?<br />4<br />
  5. 5. definitions<br />5<br />
  6. 6. ‘embodied interaction’<br />Paul Dourish<br />http://www.amazon.com/Where-Action-Foundations-Embodied-Interaction/dp/0262541785 quoted by Dan Saffer (2008)<br />6<br />
  7. 7. a systems definition<br /><ul><li>one or more sensors, a comparator, and an actuator
  8. 8. typical sensors: pressure, light, proximity, acoustic, tilt, motion, orientation</li></ul> Dan Saffer (2008)<br />7<br />
  9. 9. GIs are often multimodal<br />combining and coordinating:<br /><ul><li>speech
  10. 10. pen
  11. 11. touch
  12. 12. hand gestures
  13. 13. eye gaze
  14. 14. head and body movements</li></ul>Dan Saffer (2008)<br />8<br />
  15. 15. examples<br />9<br />
  16. 16. Star Trek doors 1960s<br />10<br />http://www.filmjunk.com/2009/01/21/treknobabble-50-top-10-star-trek-inventions-in-use-today/<br />
  17. 17. Guitar Hero 2007<br />11<br />
  18. 18. iPhone 2008<br />12<br />
  19. 19. [movies]<br />13<br />
  20. 20. Project Natal<br />http://www.youtube.com/watch?v=g_txF7iETX0<br />14<br />
  21. 21. Minority Report<br />http://www.youtube.com/watch?v=NwVBzx0LMNQ&NR=1<br />15<br />
  22. 22. Jeff Han multitouch<br />http://link.brightcove.com/services/player/bcpid769469373?bctid=769654555<br />16<br />
  23. 23. Windows7 promo<br />http://video.msn.com/video.aspx?mkt=en-us&vid=891c68b3-a534-4159-b6b2-8e4ac56b6890<br />17<br />
  24. 24. Sixth Sense<br />http://www.youtube.com/watch?v=fvkLx2ODSMc<br />18<br />
  25. 25. what GIs mean for users<br />19<br />
  26. 26. Gartner hype cycle 2009<br />gesture recognition<br />at “peak of inflated expectations”<br />adapted from www.gartner.com/DisplayDocument?doc_cd=169747<br />20<br />
  27. 27. changing how we work and play<br />21<br />
  28. 28. <ul><li>the nature of work
  29. 29. the desktop metaphor
  30. 30. more convergence of technologies
  31. 31. new questions of human identity
  32. 32. commercialisation – resurfacing old threats to usability and standards </li></ul>22<br />What might change?<br />
  33. 33. changing work<br />23<br />
  34. 34. supplanting the desktop<br />24<br />
  35. 35. convergence + smart objects+new applications<br />25<br />
  36. 36. CNN Wonder Wall 2008<br />26<br />www.nytimes.com/2008/04/22/arts/television/22king.html<br />
  37. 37. hands-free surgical info 2008<br />27<br />http://insidetech.monster.com/news/articles/2353-doctors-test-new-gestural-interface-during-brain-surgery<br />
  38. 38. hypercello<br />28<br />web.mit.edu/museum/150/items/hypercello.jpg<br />
  39. 39. Osmose (1995) <br />29<br />Char Davies, Forest Grid, from Osmose, 1995 and Osmose Treewww.immersence.com<br />
  40. 40. questions of human identity<br />30<br />
  41. 41. commercialism<br />31<br />
  42. 42. accessibility: better or worse?<br />32<br />
  43. 43. new accessibility challenges<br />33<br />
  44. 44. new accessibility potential<br />34<br />
  45. 45. what GIs mean for developers and usability practitioners<br />35<br />
  46. 46. what makes a good GI?<br />36<br />
  47. 47. Dan Saffer: Designing Gestural Interfaces<br />37<br />www.designinggesturalinterfaces.com<br />
  48. 48. Characteristics of good GIs (1)<br /><ul><li>Discoverable
  49. 49. Trustworthy
  50. 50. Responsive
  51. 51. Appropriate
  52. 52. Meaningful</li></ul>38<br />Saffer (2008)<br />
  53. 53. Characteristics of good GIs (2)<br /><ul><li>Smart
  54. 54. Clever
  55. 55. Playful
  56. 56. Pleasurable
  57. 57. Good</li></ul>39<br />Saffer (2008)<br />
  58. 58. Designing GIs<br />40<br />
  59. 59. GI design goals<br /><ul><li>natural
  60. 60. intuitive
  61. 61. enhancing
  62. 62. expressive
  63. 63. adaptive
  64. 64. portable</li></ul>41<br />Saffer (2008)<br />
  65. 65. Design challenges<br /><ul><li>synchronise multiple modalities
  66. 66. degrade gracefully
  67. 67. share a common interaction state
  68. 68. be predictable
  69. 69. adapt to user environment</li></ul>42<br />Saffer (2008)<br />
  70. 70. Rethinking UI conventions (1)<br /><ul><li>cursors
  71. 71. hovers and mouseovers
  72. 72. double click
  73. 73. right click
  74. 74. drop down menus</li></ul>43<br />Saffer (2008)<br />
  75. 75. Rethinking UI conventions (2)<br /><ul><li>cut and paste
  76. 76. multiselect
  77. 77. selected default buttons
  78. 78. undo</li></ul>44<br />Saffer (2008)<br />
  79. 79. Emerging GI design patterns<br />patterns for touch interfaces<br />patterns for free form GI interfaces<br />45<br />Saffer (2008)<br />
  80. 80. W3C – multimodal interaction activity<br />46<br />
  81. 81. what else do GI designers need to know?<br />47<br />
  82. 82. how people use gestural interfaces<br />48<br />
  83. 83. human movement<br />49<br />
  84. 84. adapting usability and design methods<br />50<br />
  85. 85. communicating GIs<br />51<br />
  86. 86. talking about gestures<br />52<br />
  87. 87. Gesture types and roles<br /><ul><li>space
  88. 88. pathic
  89. 89. symbols
  90. 90. affect
  91. 91. deixis</li></ul>53<br />Saffer (2008)<br />
  92. 92. drawing gestures<br />54<br />
  93. 93. conclusions<br />55<br />
  94. 94. GIs are coming soon:<br /><ul><li>with great potential
  95. 95. bringing new concerns
  96. 96. demanding new design skills and standards
  97. 97. changing the way we do usability</li></ul>56<br />
  98. 98. “One of the things our grandchildren will find quaintest about us is that we distinguish the digital from the real”<br />William Gibson in a Rolling Stone interview, 2007 quoted by Dan Saffer (2008)<br />57<br />
  99. 99. references<br />58<br />
  100. 100. REFERENCESVideo examples of gestural interfacesJeff Han TED Demo 2007 http://www.youtube.com/watch?v=zwGAKUForhMMinority Report http://www.youtube.com/watch?v=NwVBzx0LMNQ&NR=1Perceptive Pixel multitouchhttp://link.brightcove.com/services/player/bcpid769469373?bctid=769654555Sixth Sense www.pranavmistry.com/projects/sixthsenseWindows7 Touch http://video.msn.com/video.aspx?mkt=en-us&vid=891c68b3-a534-4159-b6b2-8e4ac56b6890Xbox Project Natal http://www.youtube.com/watch?v=g_txF7iETX0 BookDan Saffer, Designing Gestural Interfaces, O&apos;Reilly Media, 2008 WebsiteGartner, Hype Cycle for Human-Computer Interaction www.gartner.com/DisplayDocument?doc_cd=169747 Articles and research papersAkers, D. (2006). Wizard of Oz for participatory design: inventing a gestural interface for 3D selection of neural pathway estimates. Conference on Human Factors in Computing Systems, (pp. 454-459). Montreal.Bellotti, V. (2002). Making Sense of Sensing Systems: Five Questions for Designers and Researchers. CHI &apos;02: Proceedings of the SIGCHI conference on Human factors in computing systems (2002), 415-422.Hummels, C., & Stappers, P. J. (1998). Meaningful gestures for human computer interaction: beyond hand postures. Third IEEE International Conference on Automatic Face and Gesture Recognition (fg &apos;98), (p. 591).Loke, L., Larssen, A., and Robertson, T. (2005). Labanotation for Design of Movement-Based Interaction. Proceedings of Second Australasian Conference on Interactive Entertainment. Sydney.McGookin, D., Brewster, S., & Jiang, W. (2008). Investigating touchscreen accessibility for people with visual impairments. Proceedings NordiCHI 2008, (pp. 298-307). Glascow.Oviatt, S. (1999). Ten Myths of Multimodal Interaction. Communications of the ACM, 42 (11).Reeves, L. M., Lai, J., Larson, J. A., Oviatt, S., Balaji, T. S., Buisine, S., et al. (2004). Guidelines for multimodal user interface design. Communications of the ACM, 47 (1), 57-59.Nielsen, M., Störring,M., Moeslund,T. and Granum,E. (2004). Procedure for Developing Intuitive and Ergonomic Gesture Interfaces for HCI Interfaces. Lecture Notes in Computer Science: 2915/2004. Springer. Berlin.Sinha, A. K., & Landay, J. A. (2002). Embarking on Multimodal Interface Design. Fourth IEEE International Conference on Multimodal Interfaces.W3C. (2002, December 4). Multimodal interaction use cases. Retrieved August 16, 2009, from W3C NOTE : www.w3org/TR/mmi-use-casesWaibel, A. (2005). CHIL computing to overcome techno-clutter. ACM International Conference Proceedings Series: Proceedings of the 2005 Joint Conference on Smart Objects and Ambient Intelligence: Innovative Context-Aware Services: Usages and Technologies, 121. Grenoble.<br />59<br />
  101. 101. Usability of Gestural Interfaces<br />UPA Perth Chapter in Formation<br />September 2009 meeting<br />Barbara Thomas, Clarity Web Planning <br />barbara@claritywebplanning.com.au<br />60<br />

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