Time and Structure Based Navigation in Web Lectures: Bridging a Dual Media Gap

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Mertens, R., Brusilovsky, P., Ishchenko, S. & Vornberger, O. (2006). Time and Structure Based Navigation in Web Lectures: Bridging a Dual Media Gap. In T. Reeves & S. Yamashita (Eds.), Proceedings of World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education 2006 (pp. 2929-2936). Chesapeake, VA: AACE.
Retrieved from http://www.editlib.org/p/24149.

Conference Information

World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education (ELEARN) 2006
Honolulu, Hawaii, USA
October 2006
  Thomas Reeves & Shirley Yamashita
AACE

More Information on ELEARN
Table of Contents

Authors

Robert Mertens, Virtual Teaching Support Center (VirtUOS), University of Osnabrück, Germany; Peter Brusilovsky, School of Information Sciences, University of Pittsburgh, USA; Sergey Ishchenko, Virtual Teaching Support Center (VirtUOS), University of Osnabrück, Germany; Oliver Vornberger, Dept. of Computer Science, University of Osnabrück, Germany

Abstract

Typical web lectures consist of two different kinds of media linked together, an audio- or video-recording and the corresponding slides or desktop recording. Both media are synchronized so that the slide or image shown corresponds to the position currently played in the time based media stream. Web lectures are thus composite media consisting of a structured presentation and a continuous media stream. Current navigation paradigms focus on either one of these components. Time based overviews do, however, provide different contextual information than structural overviews and vice versa. Instead of enhancing either time or structure based navigation by establishing unidirectional connections to structure and time respectively, the approach presented in this paper connects time and structure based navigation in a bidirectional fashion to combine the advantages of both navigation paradigms.

Keywords

• Computer Sciences
• Information Sciences
• Educational Technology
• Interaction
• Teaching Methods

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