Mobile computing middleware for context-aware applications
Proceedings of the 24th International Conference on Software Engineering
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The increasing popularity of wireless devices, such asmobile phones, personal digital assistants, watches and thelike, is enabling new classes of applications that presentchallenging problems to designers. Applications have tobe aware of, and adapt to, frequent variations in the contextof execution, such as fluctuating network bandwidth,decreasing battery power, changes in location or device capabilities,and so on. In this paper, we argue that middlewaresolutions for wired distributed systems cannot be usedin a mobile setting, as the principle of transparency thathas driven their design runs counter to the new degrees ofawareness imposed by mobility. We propose a synergy ofreflection and code mobility as a means for middleware togive applications the desired level of flexibility to react tochanges happening in the environment, including those thathave not necessarily been foreseen by middleware designers.We use the sharing and processing of images as anapplication scenario to highlight the advantages of our approach.