Christopher Lueg (2002).
On the Gap Between Vision and Feasibility
Proceedings of the International Conference on Pervasive Computing (Pervasive 2002),
26-28 August 2002, Zurich, Switzerland. Springer Lecture Notes in Computer Science (LNCS 1414) pp. 45-57.

Late draft (postscript)
Late draft (pdf version)

Presentation slides (pdf version, 211KB)

Picture taken during the presentation (328 kb).
(courtesy of Friedemann Mattern)


Information appliances, user interfaces, and context-aware devices are necessarily based on approximations of potential users and usage situations. However, it is not an unusual experience for developers that in some areas, appropriate approximations are extremely difficult to realize. Often, these difficulties are not apparent from the beginning. Nevertheless, difficulties are rarely addressed in the pervasive computing literature as they appear to be peripheral compared to the technical challenges. In this paper, we argue that the field would largely benefit from addressing these issues explicitly. First, focussed discussions would help identify areas that have already shown to be difficult or even intractable in related disciplines, such as AI or CSCW. Second, it would help developers become aware of the difficulties and would allow them to deliberately circumvent such areas. We use example scenarios from the pervasive computing literature to illustrate these points. Difficulties to describe and to analyze impacts of pervasive computing applications indicate a need for an analysis framework providing a specific terminology.

revised 17 September 2002