In the mid nineties, electronic lecture recording has emerged as a new area of research. The aim behind most early research activities in this field has been the cost-efficient production of e-learning content as a by-product of traditional lectures. These efforts have led to the development of systems that can produce recordings of a lecture in a fraction of the time and also for a fraction of the cost that other methods require for the production of similar e-learning content.While the production of lecture recordings has been investigated thoroughly, the conditions under which the content produced can be used efficiently shifted into focus of research only recently. Employing lecture recordings in the right way is, however, crucial for the effectiveness with which they can be used. Therefore this thesis gives a detailed overview of archetypical application scenarios. A closer examination of these scenarios reveals the importance of navigation in recorded lectures as a critical factor for teaching and learning success. In order to improve navigation, a hypermedia navigation concept for recorded lectures is developed. Hypermedia navigation has proven a successful navigation paradigm in classic text- and picture-based media. In order to be adapted for time based media such as recorded lectures, a number of conceptual changes have to be applied. In this thesis, a hypermedia navigation concept is developed that tackles this problem by combining time- and structure-based navigation paradigms and by modifying existing hypermedia navigation facilities.Even a highly developed navigation concept for recorded lectures can, however, not be put into practice efficiently when production costs of suitable recordings are too high. Therefore this thesis also shows that suitable lecture recordings can be produced with minimal production cost. This endeavour is realized by the implementation of a fully automatic production chain for recording and indexing lectures.
| Identifer | oai:union.ndltd.org:uni-osnabrueck.de/oai:repositorium.ub.uni-osnabrueck.de:urn:nbn:de:gbv:700-2007110928 |
| Date | 08 November 2007 |
| Creators | Mertens, Robert |
| Contributors | Prof. Dr. Oliver Vornberger, Prof. Dr. Ute Schmid |
| Source Sets | Universität Osnabrück |
| Language | German |
| Detected Language | English |
| Type | doc-type:doctoralThesis |
| Format | application/zip, application/pdf |
| Rights | http://rightsstatements.org/vocab/InC/1.0/ |
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