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CSE 440: Introduction to HCI User Interface Design, Prototyping, and - PowerPoint PPT Presentation

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CSE 440: Introduction to HCI User Interface Design, Prototyping, and Evaluation Lecture 13: James Fogarty Designing for Diverse Needs Alex Fiannaca Lauren Milne Saba Kawas Kelsey Munsell Tuesday/Thursday 12:00 to 1:20 Today Usability

  1. PassChords Tap 4 Azenkot et al, ASSETS 2012

  2. PassChords Azenkot et al, ASSETS 2012

  3. PassChords Azenkot et al, ASSETS 2012

  4. Time to Authenticate 10 8 Seconds 6 4 2 PassChords VoiceOver PINs Azenkot et al, ASSETS 2012

  5. Accuracy 50 40 Failure Rate 30 20 10 PassChords VoiceOver PINs Azenkot et al, ASSETS 2012

  6. What About Security? Azenkot et al, ASSETS 2012

  7. What About Security? One measure is Guessing Entropy The minimum number of bits needed to encode the set of all possible passwords 4-digit PINS: 12.7 bits Azenkot et al, ASSETS 2012

  8. Finger Pattern Frequency Note the relative absence of three-finger chords 20% 10% 0% Index Middle Ring Pinky Azenkot et al, ASSETS 2012

  9. What About Security? One measure is Guessing Entropy The minimum number of bits needed to encode the set of all possible passwords 4-digit PINS: 12.7 bits 4-tap PassChords: 12.6 bits Azenkot et al, ASSETS 2012

  10. Speech Input Azenkot et al, ASSETS 2013

  11. Reviewing Errors and Edits When of my hobbies is hiking. I really enjoyed getting away… The triangle consist of a 2 mile hike to the beach, I three-mile hike along the beach, and a 2 mile hike back. It is a very common hike, but I knew to the northwestern if you like I need to do it. Azenkot et al, ASSETS 2013

  12. Serial Access in Reviewing Transcript When of my hobbies is hiking. I really enjoyed getting away… The triangle consist of a 2 mile hike to the beach, I three-mile hike along the beach, and a 2 mile hike back. It is a very common hike, but I knew to the northwestern if you like I need to do it. Azenkot et al, ASSETS 2013

  13. Serial Access in Reviewing Transcript When of my hobbies is hiking. I really enjoyed getting away… The triangle consist of a 2 mile hike to the beach, I three-mile hike along the beach, and a 2 mile hike back. It is a very common hike, but I knew to the northwestern if you like I need to do it. Azenkot et al, ASSETS 2013

  14. Serial Access in Reviewing Transcript When of my hobbies is hiking. I really enjoyed getting away… The triangle consist of a 2 mile hike to the beach, I three-mile hike along the beach, and a 2 mile hike back. It is a very common hike, but I knew to the northwestern if you like I need to do it. Azenkot et al, ASSETS 2013

  15. Serial Access in Reviewing Transcript When of my hobbies is hiking. I really enjoyed getting away… The triangle consist of a 2 mile hike to the beach, I three-mile hike along the beach, and a 2 mile hike back. It is a very common hike, but I knew to the northwestern if you like I need to do it. Azenkot et al, ASSETS 2013

  16. Reviews and Edits 80% of composition time in review and edits 150 Words Per Minute (WPM) 100 50 Natural Speech Keyboard speech input Azenkot et al, ASSETS 2013

  17. Spifi Azenkot et al, ASSETS 2013

  18. Spifi Azenkot et al, ASSETS 2013

  19. Spifi Azenkot et al, ASSETS 2013

  20. Spifi Azenkot et al, ASSETS 2013

  21. Recognize Speech as N-best List Do you need a day? Do you need today? Do you need it today? Do you need to today? Azenkot et al, ASSETS 2013

  22. Find Uncertain Words Do you need a day? Do you need today? Do you need it today? Do you need to today? Do you need ** ****** Azenkot et al, ASSETS 2013

  23. Split Into Phrases and Align Alternatives Do you need a day? today? it today? to today? Azenkot et al, ASSETS 2013

  24. Accessibility is More than Text Entry “Sometimes you don’t follow along as well unless [you are] one on one.” Eyes-Free Yoga, Rector et al, ASSETS 2013

  25. Accessibility is More than Text Entry Eyes-Free Yoga, Rector et al, ASSETS 2013

  26. Accessibility is More than Text Entry Eyes-Free Yoga, Rector et al, ASSETS 2013

  27. Accessibility is More than Text Entry Ferris et al, 2010

  28. Accessibility is More than Text Entry How do you find a bus stop? Azenkot et al, CHI 2011

  29. Accessibility is More than Text Entry StopInfo, Campbell et al, ASSETS 2014

  30. What is Disability? Old model is medical, focused on the individual with a mindset of “fixing” an impairment Current model understands disability is imposed by society and design not accounting for diversity “Disability is thus not just a health problem. … the interaction between features of a person’s body and features of the society in which he or she lives. Overcoming the difficulties…requires interventions to remove environmental and social barriers.”

  31. What is Disability? Impairment a problem in body function or structure Activity Limitation a difficulty encountered by a person in executing a task or action Participation Restriction a problem experienced by a person in involvement in life situations

  32. A Basic Tenet of Design You are not designing for yourself You need to understand the context of your design and the people who will use it We need diversity in who is doing design As a field, our work suffers because of this failing

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