A Mobile Context-based Information System for Urban Orientation of Sighted and Visually-Impaired Users presented by Michelle.

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Presentation transcript:

A Mobile Context-based Information System for Urban Orientation of Sighted and Visually-Impaired Users presented by Michelle Escobar University of Michigan School of Information

Photo © OliverN5 (flickr.com) ‏ New! Show Tonight! Special Offer! Insider Tip! Interesting Building! Come In! Lots of Visual, Serendipitous Information in Urban Environments

For Visually-Impaired people it looks different

Our Answer: Talking-Points location

Talking-Points System

Design Objectives Following a user centered design process Making the device unobtrusive in terms of form factor and user interaction Leveraging community-generated location information

Follow user-centered design processes Early focus on the user Active user participation throughout the project Early prototyping Continuous iteration of design solutions Multidisciplinary design team

Creating scenarios

Simulating the system WOz (Wizard of Oz) study: Human plays role of system interpreting user inputs and issuing appropriate response according to predefined rules modeling the intended system behavior

Other Influences Observational interviews Focus group User testing

Open source software Open source software encourages personalization to meet user’s needs Java CMU Sphinx library FreeTTS

Adoption of an unobtrusive device Assistive technology devices tend to have a high abandon rate Devices that are inconspicuous do not force “disabled” status on individuals

Hardware Components OQO –Bluetooth – Headphone – EVDO/GPRS Internet Connectivity – Small – Long-lasting Battery Headset –Bluetooth – Long-lasting Battery Bluetooth beacon –Durable – Unobtrusive – Unique MAC address

Community-generated location information Talking-Points website Ownership of tags Database accrued from community & other sites

Future Work Limitations of Bluetooth as a location-tagging technology Lack of orientation information impedes usability Textually-submitted content may not be suitable for speech-based delivery

Questions?

Contact Information Talking-Points Google Code: talkingpoints-2/ Michelle Escobar

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