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Human factors in the design of a personalizable EPG: preference-indication strategies, habit watching and trust

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The article describes a user study to support the design of a personalizable EPG (Electronic TV Programme Guide), and of its user interface for editing user preference profiles regarding TV channels and categories. This study focuses on issues related to users' behaviour and perceptions regarding a personalizable EPG, and especially regarding the personalization process. Users were presented with a paper-and-pencil procedure to indicate their TV viewing preferences, as well as with an electronic version. Their strategies were observed and their opinions asked, especially on trusting a system that uses this data. Moreover, their viewing behaviour was monitored over a period of two weeks, and recommendations for the second week were based on the viewing behaviour of the first week. The results indicate that users are reasonably comfortable and consistent in describing their viewing habits in terms of preferences, both for the paper-and-pencil and electronic preference-indication procedures, but that fine tuning this profile on the basis of habit watching would considerably improve the efficacy of the recommendations. It was found that subjects trust the system with the task of preselecting their TV programmes on the basis of their preference indications, although they are not sure whether a habit-watching system would be capable of following their changing habits over time.

Document Type: Research Article


Affiliations: 1: Philips Research, Eindhoven, The Netherlands 2: ASML, Eindhoven, The Netherlands 3: Faculty of Industrial Design, Delft University of Technology, Delft, The Netherlands 4: Faculty of Technology Management, Eindhoven University of Technology, Eindhoven, The Netherlands

Publication date: July 1, 2002

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