Abstract
Recording a lecture in front of a live audience and providing the recorded audio and video stream together with slides over the web is becoming more and more popular. The Authoring on the Fly system (AOF), which has been used in many different courses over the past years, allows us to automatically produce a multimedia document with an HTML overview. In this paper we describe an empirical study of the students' behavior using the AOF recordings for time independent learning in a traditional computer science course. We focus on the questions of how and why students use this tool and if any changes occurred in their learning behavior. For example, did the students work solely at home more often if they used AOF recordings? We explore students' behavior by log file analysis and the results of a detailed questionnaire. As the results show, it is possible to identify different types of user. We conclude that in this scenario lecture recording is also a very good supplement to, but should not replace, the live presentation.
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