... Weiser1
Mark Weiser is often considered as the spiritual father of ubiquitous computing.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... Wikipedia2
http://www.wikipedia.org
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... ergonomics3
See [1] and [6] for studies of ergonomics in terms of human-computer interfaces.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... iButtons4
iButtons and the DS2401 ``silicon serial numbers'' are manufactured by Dallas Semiconductors Inc.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
...classification5
It is worth noting that [11] is based on [18] and basically offers four categories for TUIs to fit in: Spatial, Constructive, Relational and Associative.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... tokens6
Refer to [8,9] for comparisons of the contactful/less automatic identification systems.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... widgets7
A widget is basically a graphical component (e.g. a scroll-bar, a text field) the user employs for interacting with a computer.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... tile8
Such a tile is similar to the well known iPod's scroll wheel designed by Synaptic Inc. Refer to [2] for a full cover of the story behind this mythical wheel
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
...EmbeddedInteractive9
Some of their impressive works on media TUIs are not published yet but videos of the projects are available on the web (see [16]).
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... app''10
A ``killer app'' is basically a use-case showing a positive ROI (Return On Investment) or meeting a real need that has enough powers to initiate a buying decision.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.