"Several simulation projects in the area of production and logistics indicated that,although we have sophisticated input and output devices for computer supportedmodeling, physical models still play an important role for cognition and communication.We therefore introduce the concept of a Graspable User Interface that aims at combiningtwo model worlds, the one inside the computer and a corresponding physical one in theoutside world. Sensored user hands will couple physical objects of the real world withvirtual objects, thus allowing fairly unrestricted manipulation and expression. In thisway modeling with real physical objects can create an abstract virtual model. Someapplications of this concept are presented. A further perspective for a new actionoriented communication and learning with artifacts is envisioned." [author's abstract]
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