Power-Browsing – a Method to Accelerate Designers’ Familiarity With Video Information in Digital Libraries
Neeraj S. Sonalkar, Ade Mabogunje, LARRY J. LEIFER, Özgür Eriş, Malte Friedrich Jung · Guidelines for a Decision Support Method Adapted to NPD Processes · 2007
Video as a tool for information capture and reuse is being increasingly used in the field of engineering design. The capability of video to capture contextual information and tacit information makes it especially attractive to designers in the user testing and field validation phases of the design process. The ability to easily capture an event without spending added time on text documentation has enabled designers to record design activities in great detail. However, browsing through hours of real-time video is still a tedious process that discourages video information reuse. This paper presents and defines power-browsing as the browsing of video at high speed with the use of sub-titles. This will lead to greater information reuse by allowing the designers to rapidly develop familiarity with the video content and thus accelerate design learning. Video content is segmented into two categories, video-centric and audio-centric. The videos that are audio-centric are first processed to convert relevant audio information to sub-titles in order to browse at high speeds without significant loss of information. The power-browsing method was tested in a laboratory setting and the subjects’ learning of the video content was examined with a test based on Bloom’s Taxonomy. A key finding from the exploratory study was that there was no significant difference between learning at 2X speed and at 4X speed of video playback. The results of the laboratory study demonstrate the potential of power-browsing as a method to accelerate designers’ familiarity with video information by browsing at speeds as high as 4X. This might address the problem of information overload from large video repositories and lead to greater information reuse by the designers.