Abstract

Computing environments which involve many interacting devices are a challenge for system and user interface designers. A prototype of a multiple-device application consisting of a personal digital assistant (PDA) that operates in conjunction with interactive television (ITV) was developed from user requirements for a real estate information service. The application is used both as a stand-alone service and in conjunction with a television. Users interact exclusively with the PDA. The television responds to PDA output and is used for the presentation of visual images and videos. In this paper the application is described and user interface design issues that arise in the context of multiple device systems are discussed. Keywords: Personal digital assistants (PDA), interactive television (ITV), ubiquitous computing, mobile computing, multiple devices. DESIGNING FOR MULTIPLE DEVICES Future computing environments are likely to involve a combination of specialized personal devices that ...

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