Concept of Tangible User Interface (TUI) that is based on physical embodiment of digital information & computation, in order to go beyond the current dominant paradigm of “Painted Bits” or Graphical User Interface (GUI). Humans have evolved a heightened ability to sense and manipulate the physical world, yet the GUI based on intangible pixels takes little advantage of this capacity.
The TUI builds upon our dexterity by embodying digital information in physical space. TUIs expand the affordances of physical objects, surfaces, and spaces so they can support direct engagement with the digital world.
Through the design of a variety of TUIs, however, we have learned that TUIs are limited by the rigidity of “atoms” in comparison with the fluidity of “bits”. TUIs have limited ability to change the form or properties of physical objects in real time.
This constraint can make the physical state of TUIs inconsistent with the underlying digital models.
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