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Presentation
A Study of Out-of-turn Interaction in Menu-based, IVR, Voicemail Systems
Proceedings of the 25th International ACM Conference on Human Factors in Computing Systems
  • Saverio Perugini, University of Dayton
  • Taylor J. Anderson, University of Dayton
  • William F. Moroney, University of Dayton
Document Type
Article
Publication Date
1-1-2007
Abstract
We present the first user study of out-of-turn interaction in menu-based, interactive voice-response systems. Out-ofturn interaction is a technique which empowers the user (unable to respond to the current prompt) to take the conversational initiative by supplying information that is currently unsolicited, but expected later in the dialog. The technique permits the user to circumvent any flows of navigation hardwired into the design and navigate the menus in a manner which reflects their model of the task. We conducted a laboratory experiment to measure the effect of the use of outof- turn interaction on user performance and preference in a menu-based, voice interface to voicemail. Specifically, we compared two interfaces with the exact same hierarchical menu design: one with the capability of accepting out-ofturn utterances and one without this feature. The results indicate that out-of-turn interaction significantly reduces task completion time, improves usability, and is preferred to the baseline. This research studies an unexplored dimension of the design space for automated telephone services, namely the nature of user-addressable input (utterance) supplied (in-turn vs. out-of-turn), in contrast to more traditional dimensions such as input modality (touch-tone vs. text vs. voice) and style of interaction (menu-based vs. natural language).
Inclusive pages
961-970
ISBN/ISSN
978-1-59593-593-9
Document Version
Published Version
Publisher
Association for Computing Machinery
Peer Reviewed
Yes
Keywords
  • Out-of-turn interaction,
  • Interactive Voice-Response systems (IVRs),
  • Automated Telephone Services (ATS),
  • speech user interfaces,
  • user studies,
  • Automatic Speech Recognition (ASR),
  • mixed-initiative interaction,
  • usability.
Citation Information
Saverio Perugini, Taylor J. Anderson and William F. Moroney. "A Study of Out-of-turn Interaction in Menu-based, IVR, Voicemail Systems" Proceedings of the 25th International ACM Conference on Human Factors in Computing Systems (2007)
Available at: http://works.bepress.com/saverio_perugini/19/