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Users often become frustrated when they are unable to understand and control a pervasive computing environment. Previous studies have shown that allowing users to pose why and why not questions about context-aware applications resulted in better understanding and stronger feelings of trust. Although why and why not questions have been used before to aid in debugging and to clarify graphical user interfaces,...
Pervasive applications are typically realized through ad-hoc service and user interface compositions. While many tools focus on the development of pervasive services by masking the complex technical side of a pervasive computing environment, the deployment of an application as a whole -- i.e. a set of services and user interfaces -- is often forgotten. We present an alternative design strategy and...
Pervasive computing environments are complex to interact with due to the dynamic assembly of interaction resources and the need to adapt to sudden changes in the environment configuration. When the complexity of such an environment is masked by the underlying computing system, end-users are often left with limited or no control over their interactive space. This brings up the need to make users aware...
The increasing complexity of pervasive computing environments puts the current software development methods to the test. There is a large variation in different types of hardware that need to be addressed. Besides, there is no guarantee the environment does not evolve, making the software developed for the initial environment deprecated and in need for updates or reconfiguration. Software deployed...
Web services are todays preferred vehicle for creating service-oriented architectures (SOA). Due to the boom of personal networked devices, the Web also found its way to the mobile space. This gives rise to device hosted mobile services that deliver functionality over a wireless network. There is potential to unite these services in a collaborative service space and exploit them as building blocks...
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