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CADEAU: Supporting Autonomic and User-Controlled Application Composition in Ubiquitous Environments
Abstract
In this chapter, the authors introduce CADEAU, a prototype that addresses these challenges through a unique combination of autonomic mechanisms for application composition and methods for user interaction. These methods differ from each other in the degree to which the user is involved in the control of the prototype. They are offered so that users can choose the appropriate method according to their needs, the application and other context information. These methods use the mobile device as an interaction tool that connects users and resources in the ubiquitous space. The authors present the architecture, the interaction design, and the implementation of CADEAU and give the results of a user study that involved 30 participants from various backgrounds. This study explores the balance between user control and system autonomy depending on different contexts, the user’s needs, and expertise. In particular, the study analyses the circumstances under which users prefer to rely on certain interaction methods for application composition. It is argued that this study is a key step towards better user acceptance of future systems for the composition of ubiquitous applications.
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