Observing Sara

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Observing Sara

  1. 1. Observing Sara: A Case Study of a Blind Person’s Interactions with Technology presenter: 徐欣佑
  2. 2. Reference <ul><li>Kristen Shinohara, Josh Tenenberg “Observing Sara: A Case Study of a Blind Person’s Interactions with Technology ” , ACM SIGACCESS Conference on Assistive Technologies , SESSION: Personal technologies , Pages: 171 - 178 , 2007 . </li></ul>
  3. 3. Introduction <ul><li>The blind computer user </li></ul><ul><li>Workarounds strategies </li></ul><ul><li>Physical and social world </li></ul><ul><li>Studying a single user </li></ul><ul><ul><li>Across a range of devices and tasks </li></ul></ul><ul><ul><li>Broader and more nuanced understanding </li></ul></ul>
  4. 4. Assistive technology for people with visual impairment <ul><li>Audible screen readers </li></ul><ul><li>External memory aids </li></ul><ul><li>Non-speech sounds for navigation </li></ul><ul><li>W3C’s Web Accessibility Guidelines </li></ul><ul><ul><li>physical and cognitive abilities </li></ul></ul><ul><ul><li>Different interaction needs </li></ul></ul>
  5. 5. In-depth exploratory and descriptive case-study <ul><li>Interaction with both digital and physical objects </li></ul><ul><li>In the individual’s home </li></ul><ul><li>Breakdowns and workarounds </li></ul>
  6. 6. Sara’s life (software and hardware) <ul><li>BrailleNote and Braille labler </li></ul><ul><li>Cell phone </li></ul><ul><li>Electronic dictionary </li></ul><ul><li>CD collection and CD player </li></ul><ul><li>Job access with speech screen reader </li></ul><ul><li>Tactile watch </li></ul>
  7. 7. Analysis of interviews and observations <ul><li>Navigation with JAWS (screen reader) </li></ul><ul><ul><li>Does not recognize pictures and graphics </li></ul></ul><ul><ul><li>Different key to execute intended action </li></ul></ul><ul><li>Tactile watch </li></ul><ul><ul><li>Why not digital? (“marks”) </li></ul></ul>
  8. 8. Analysis of interviews and observations <ul><li>Organization CD collection </li></ul><ul><ul><li>Label only in braille </li></ul></ul><ul><ul><li>Discs are not organized in name </li></ul></ul><ul><li>Receiving text messages by cell phone </li></ul><ul><ul><li>Unable to access and read the SMS </li></ul></ul>
  9. 9. Conclusion <ul><li>Broader range of tasks will improve the internal validity of research </li></ul><ul><li>Who will use technology,how they will use it </li></ul><ul><li>Technologies can ‘mark’ an individual </li></ul>

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