This paper describes an extension to Ullmer and Ishii's TUI-categorization. The reason for adding new categories is based on their omission of their associative TUIs and our work in this area of personal objects. The benefit of using personal objects instead of generic objects is that in the first instance users already have mental models or personal links between experiences, the related media and these objects. In addition, a Graspable or Tangible User Interface with personal objects can support existing media systems, instead of designing new ones that have to be learned by users.
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