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Joey Track Presentation


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Joey Track Presentation

  1. 1. JoeyTalk GPS Speech Recognition System May 2006
  2. 2. Our Team <ul><ul><ul><ul><ul><li>Karen Lin </li></ul></ul></ul></ul></ul><ul><ul><ul><li>Steve Myrthil </li></ul></ul></ul><ul><li>Hao Tran </li></ul>
  3. 3. Our Joey at Tufts <ul><li>Free shuttle from campus to Davis Square </li></ul><ul><li>Stops at various locations on campus </li></ul><ul><li>Used by students, faculty, staff and visitors </li></ul>
  4. 4. Wait or Walk? <ul><li>Frequent changes in the schedule </li></ul><ul><li>Inconsistent arrival/departure times </li></ul><ul><ul><ul><li>Traffic Delays </li></ul></ul></ul><ul><ul><ul><li>Shift Changing of Drivers </li></ul></ul></ul><ul><ul><ul><li>Change of routes </li></ul></ul></ul>
  5. 5. <ul><li>Real-time information on Joey’s location </li></ul><ul><li>Via website currently in testing phase </li></ul>A Solution…
  6. 6. Our Solution… <ul><li>A decision aid that talks </li></ul>
  7. 7. Making Joey Talk <ul><li>Design a voice user interface </li></ul><ul><li>Prototype </li></ul><ul><li>Usability Test </li></ul><ul><li>Refine Design </li></ul>
  8. 8. The Design Process <ul><li>How to communicate where the Joey is </li></ul><ul><ul><ul><li>Use major landmarks </li></ul></ul></ul><ul><ul><ul><li>Keep wording simple and effective </li></ul></ul></ul><ul><li>Determine each unique path </li></ul>
  9. 9. Mapping The Prompts Tufts University Davis Square Red Line Stop
  10. 10. Mapping The Prompts The Joey is on Packard Avenue on its way to Campus Center. Tufts University Davis Square Red Line Stop
  11. 11. Interpreting GPS <ul><li>Latitude and longitude coordinates </li></ul><ul><li>Each set pinpoints an address </li></ul>42.4083790, -71.1207980 160 Packard Ave, Medford, MA
  12. 12. Our Simulation <ul><li>Moves the Joey through virtual space </li></ul><ul><li>Mimics the 10-second refresh rate </li></ul><ul><li>VXML and Java </li></ul><ul><li>Bevocal host server </li></ul>Sample Call of Initial Prototype:
  13. 13. Usability Testing <ul><li>Methodology </li></ul><ul><ul><ul><ul><li>Real users as participants (5) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Three test scenarios </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Observations, timed tasks </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Questionnaires </li></ul></ul></ul></ul>because it’s all about the user’s experience…
  14. 14. <ul><li>“ Takes too long a time to reach </li></ul><ul><li>goal information (Joey’s location)” </li></ul>Usability Findings A snap shot
  15. 15. Catering to User needs… Redesigned to tell the Joey’s location immediately Before After
  16. 16. Joey all grown up… Final Sample Call: Redesign resulted in improved usability ratings
  17. 17. As Joey matures… <ul><li>Full Integration with JoeyTrack Website </li></ul><ul><li>Accommodate Two Shuttles </li></ul><ul><li>Route Advisory Alerts </li></ul><ul><li>Text Messaging Options </li></ul>
  18. 18. Outside Applications <ul><ul><ul><ul><li>Other Tufts’ shuttles </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Other mass transit systems </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Locate your teenage kids </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Anything you could hope to know </li></ul></ul></ul></ul>
  19. 19. <ul><li>Questions? </li></ul>
  20. 20. <ul><li>Thank You! </li></ul>