The user interfaces in virtual environments depend on the work task given by specific applications and the adaption to the human senses. This paper describes a method for work task analysis and selection of interaction devices for the design of user interfaces in virtual environments. The method takes into consideration degrees of freedom in the interaction process and the human senses. Characteristic is the systematic process for the designer. The method will be described and the results in an experimental environment discussed
International competition is characterised by the reduce of the innovation time. Therefore the success of new products strongly depends on the necessary time for their development. Virtual Reality, a new 3D human-computer interface accelerates significantly the processes of creating and handling 3D data in 3D space for design and evaluation purposes. The paper outlines required system tools for the design and evaluation of new products based on Virtual Reality techniques. The goal of these tools is to enable interaction in an intuitive and easy way with a virtual product. Furthermore tools have been developed for the support of co-operative work in a virtual environment.
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