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Getting in touch with text: Designing a mobile
phone application for illiterate users
to harness SMS
Previous research
• feature phones
• Chipchase (2005)
use call logs instead of contact list
avoid stygmatizing devices
icons + text
• Medhi et al. (2007)
minimal use of text or even text free
• audio feedback and voice annotation support
• Prasad et al. (2008)
feedback for screen navigation
Interviews:
9 participants (7f, 2m)
• description of a typical day
• problems faced
• technology use at home
• mobile phones
receiving and placing calls
SMS
managing Contacts
Voice-assisted SMS application: Easy Texting
‘reading’ SMS
• text-to-speech
• karaoke
• playable buttons
composing SMS
• using icons
• sound support
• single/double tap
composing SMS
• re composition
• double tap
• plain SMS
Lab study
Lab study: structure
Each session (45 min):
• socio-demographic questionnaire
• short semi structured interview
• exploratory usability test of the application
• debrief interview
Exploratory usability tests
• demonstrating the application
• watch and repeat approach
• using simple and non technical vocabulary
• talk aloud protocol
Results
• impossible to « read » without Karaoke
• 2 out of 3 succeded after 10 min training
• two main errors
simple tap/double tap
screen navigation through scrolling
Summary
• proficient use of mobile phones (smart and feature)
• not a cognitive issue
• does not stigmatize illiterate users
• corpus of icons limited
• potential source of learning
current work
• port to Android
• voice recognition
• 3 choices
• one month field trial