• Make daily tasks for blind/low-vision people easier so they are integrated
• Other applications
  • screen readers
  • speech output
  • applications to enhance other cognitive skills
• Oher technologies
  • iCARE
  • BIGS
  • GPS technology
• Purpose
  • Extend model for design of mobile apps for blind people
  • mobility experiments for the blind
  • find contexts to which model can be applied
• Why?
  • understand problems
  • validate mobile solutions
  • improve adequate applications
  • minimize design
  • minimize methodological
• Hypothesis
  • Any related info provide to blind help them to accomplish everyday tasks independently and efficiently
• Study
  • Three stage mobility experience
    • Normal path
    • Path with obstacles
    • obstacles + additional info
  • Group 1 4-19 school
  • Group 2 20-27 (3 low visition 2 blind) unknown building
  • Decrease in navigation times
• Type of information is important
  • mobile app development model for the blind
    • produce a model of the environment
    • collection nodes and path (only relevant objects)
  • analysis to define supported tasks by the system, and generate metrics
    • development: implementation of a virtual environment
    • evaluation: check model effectiveness
    • projection: mapping input and output vars
    • validation: usability/effectiveness test
    • context: evaulate influence of context on software dev
  • Nodes are points of path changes
  • Information nodes are obstacles/etc
• Applying the model
  • system uses RFID tech to represent school path that are familiar to children
  • neighborhood context: GPS position outdoors
  • metro in santiago, graphs are subway maps
• Conclusion
  • propose a model for mobile app dev
  • field experiments were implemented
  • providing relevant information highly improves visually-impaired people's mobility
  • solve problems associated with unexpected changes
  • some aids and support
  • goal: social integration

Comment: blind population is very small, hard to find companies that will address this problem. So, point out that things that are useful for blind people can be useful for others. Take advantage of this fact.