Multiple decoupled interaction: An interaction design approach for groupware interaction in co-located virtual environments

Interactive visualizations such as virtual environments and their associated input and interface techniques have traditionally focused on localized single-user interactions and have lacked co-present active collaboration mechanisms where two or more co-located users can share and actively cooperate and interact with the visual simulation. VR facilities such as CAVEs or PowerWalls, among many others, seem to promise such collaboration but due to the special requirements in terms of 3D input and output devices and the physical configuration and layout, they are generally designed to support an active controlling participant-the immersed user-and a passive viewing only audience. In this paper we explore the integration of different technologies, such as small handheld devices and wireless networks with VR/VEs in order to develop a technical and conceptual interaction approach that allows creation of a more ad hoc, interaction rich, multimodal and multi-device environment, where multiple users can access certain interactive capabilities of VE and support co-located collaboration.

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