A. MacWilliams Software Development Challenges for Ubiquitous Augmented Reality First Virtual and Augmented Reality Workshop of the Gesellschaft für Informatik, Chemnitz, September 2004 (bib)
	The research areas of augmented reality and ubiquitous computing both contribute to a more natural interaction of users with computing systems in their environment. As each area matures, they are beginning to overlap. Their confluence is the domain for my dissertation, and I call it ubiquitous augmented reality. Building ubiquitous augmented reality systems presents three software engineering challenges. First, the software must cope with uncertainty; the users mobility changes the availability of distributed devices. Second, the desired behavior of a system is ill-defined, as appropriate interaction metaphors are still being researched and users preferences change. Third, the system must maintain near-real-time performance to create a convincing user experience. In this position paper, I present the domain of ubiquitous augmented reality, show several example applications, and describe the software engineering challenges. These serve as a motivation for ongoing and future research.
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