Indoor wayfinding: : developing a functional interface for individuals with cognitive impairments

Assistive technology for wayfinding will significantly improve the quality of life for many individuals with cognitive impairments. The user interface of such a system is as crucial as the underlying implementation and localization technology. We built a system using the Wizard-of-Oz technique that let us experiment with many guidance strategies and interface modalities. Through user studies, we evaluated various configurations of the user interface for accuracy of route completion, time to completion, and user preferences. We used a counter-balanced design that included different modalities (images, audio, and text) and different routes. We found that although users were able to use all types of modalities to find their way indoors, they varied significantly in their preferred modalities. We also found that timing of directions requires careful attention, as does providing users with confirmation messages at appropriate times. Our findings suggest that the ability to adapt indoor way...

• Type: Conference
• Year: 2006
• Where: ASSETS
• Authors: Alan L. Liu, Harlan Hile, Henry A. Kautz, Gaetano Borriello, Pat A. Brown, Mark Harniss, Kurt Johnson
• Keywords: ASSETS 2006, Emerging Technology, Indoor Wayfinding Devices, Interface Modalities, User Interface