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A tangible user interface (TUI) is a user interface in which a person interacts with digital information through the physical environment. The initial name was Graspable User Interface, which is no longer used. The purpose of TUI development is to empower collaboration, learning, and design by giving physical forms to digital information, thus taking advantage of human abilities of grasp and manipulate physical objects and materials.〔Ishii, H. 2008. Tangible bits: beyond pixels. In Proceedings of the 2nd international Conference on Tangible and Embedded interaction (Bonn, Germany, February 18–20, 2008). TEI ‘08. ACM, New York, NY, xv-xxv.〕 One of the pioneers in tangible user interfaces is Hiroshi Ishii, a professor in the MIT Media Laboratory who heads the Tangible Media Group. His particular vision for tangible UIs, called ''Tangible Bits'', is to give physical form to digital information, making bits directly manipulable and perceptible. Tangible bits pursues the seamless coupling between physical objects and virtual data. == Characteristics of tangible user interfaces == # Physical representations are computationally coupled to underlying digital information. # Physical representations embody mechanisms for interactive control. # Physical representations are perceptually coupled to actively mediated digital representations. # Physical state of tangibles embodies key aspects of the digital state of a system According to,〔Mi Jeong Kim, Mary Lou Maher.: The impact of tangible user interfaces on spatial cognition during collaborative design.In: Design Studies, Vol 29, No. 3, May 2008〕 five basic defining properties of tangible user interfaces are as follows: #space-multiplex both input and output; #concurrent access and manipulation of interface components; #strong specific devices; #spatially aware computational devices; #spatial re-configurability of devices. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「tangible user interface」の詳細全文を読む スポンサード リンク
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