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Tools for understanding; tools for designing

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My presentation of my short paper from OZCHI06.

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Tools for understanding; tools for designing

  1. 1. Embracing errorful speech recognition: Understanding and Designing Ben Kraal , Anni Dugdale, Penny Collings and Michael Wagner
  2. 2. The Magistrates Court wanted to use ASR* * Automatic Speech Recognition
  3. 3. Software designer Field worker
  4. 4. Normal ASR is not for the Court Errorful recognition is usual
  5. 5. Rethink what “ASR for the Court” means
  6. 6. Use new techniques to rethink ASR <ul><li>Caricatured Scenarios </li></ul><ul><li>Actor-Network Theory </li></ul>
  7. 7. Scenarios reveal hidden assumptions <ul><li>And ask more questions </li></ul>
  8. 8. But don’t show ‘behind the scenes’ work <ul><li>Which is itself an assumption! </li></ul>Photo from http://www.sxc.hu/photo/509606
  9. 9. ANT can show what is… <ul><li>Obdurate </li></ul>Plastic
  10. 10. The courtroom is obdurate <ul><li>Tradition resists change </li></ul>Photo bydabcanboulet, original at http://flickr.com/photos/dabcanboulet/129958067/
  11. 11. The ‘back room’ is plastic <ul><li>Work practices are changeable </li></ul>Photo from http://www.sxc.hu/photo/455596
  12. 12. A new design targets plastic elements And respects obdurate ones
  13. 13. Finding the ‘new’ ASR <ul><li>The speaker is not the user </li></ul><ul><li>Free form speech </li></ul><ul><li>Errors are OK </li></ul><ul><li>Integrated into work practices </li></ul>Recognising speech for use later
  14. 14. Whittaker’s SCAN and ScanMAIL Image from Whittaker et al 2002, pg276. What You See is Almost What You Hear
  15. 15. How can ASR be used at the Court? <ul><li>In the back room </li></ul><ul><li>Desktop interface </li></ul><ul><li>Text from courtroom speech </li></ul><ul><li>Speech is archived </li></ul><ul><li>Speech has authority over text </li></ul>
  16. 16. Errorful ASR would disrupt the court
  17. 17. Use new techniques to rethink ASR Caricatured Scenarios Reveal assumptions Actor-Network Theory Obdurate – stable Plastic - changeable
  18. 18. Tools for understanding; Tools for designing Actor-Network Theory Obdurate – stable Plastic - changeable Caricatured Scenarios Reveal assumptions
  19. 19. Embrace Errorfulness
  20. 20. Thanks to… Magistrates Court of the ACT

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