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2.5 Interaction paradigms 61 I

Figure 2.1 1 Examples of new interaction paradigms: (a) Some of the original devices devel-
oped as part of the ubiquitous computing paradigm. Tabs are small hand-sized wireless
computers which know where they are and who they are with. Pads are paper-sized devices
connected to the system via radio. They know where they are and who they are with. Live-
boards are large wall sized devices. The "Dangling String" created by artist Natalie Jeremi-
jenko was attached directly to the ethernet that ran overhead in the ceiling. It spun around
depending on the level of digital traffic.
(b) Ishii and Ulmer, MIT Lab (1997) Tangible bits: from GUIs of desktop PCs to Tangible
User Interfaces. The paradigm is concerned with establishing a new type of HCI called
"Tangible User Interfaces" (TUIs). TUIs augment the real physical world by coupling digi-
tal information to everyday physical objects and environments.
(c) Affective Computing: The project, called "BlueEyes," is creating devices with embedded
technology that gather information about people. This face (with movable eyebrows, eyes
and mouth) tracks your movements and facial expressions and responds accordingly.