Context & usability testing: user-modeled information presentation in easy and difficult driving conditions

Authors:
Jiang Hu;Andi Winterboer;Clifford I. Nass;Johanna D. Moore;Rebecca Illowsky
Affiliations:
Stanford University, Stanford, CA;University of Edinburgh, Edinburgh, United Kingdom;Stanford University, Stanford, CA;University of Edinburgh, Edinburgh, United Kingdom;Stanford University, Stanford, CA
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2007

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Abstract

A 2x2 enhanced Wizard-of-Oz experiment (N = 32) was conducted to compare two different approaches to presenting information to drivers in easy and difficult driving conditions. Data of driving safety, evaluation of the spoken dialogue system, and perception of self were analyzed. Results show that the user-modeled summarize-and-refine (UMSR) approach led to more efficient information retrieval than did the summarize-and-refine (SR) approach. However, depending on driving condition, higher efficiency did not always translate into pleasant subjective experience. Implications for usability testing and interface design were presented, followed by discussions of future research directions.