An offset algorithm for conflict resolution in context-aware computing
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
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Self-adaptable systems dynamically adapt to satisfy new functionality requirements, to optimize performance and to adapt to variable runtime conditions. Context-aware systems acquire and utilize information about the context of a user and a device to provide personalized applications. Adaptation in a transparent way for the user is an important concern for both systems. To decrease the adaptation complexity of self-adaptable context-aware systems, we propose to model self-adaptation across three layers of abstractions: the runtime infrastructure, the context middleware and the user applications. The aim is to achieve per layer selfadaptation of the composition or behavior of these layers without jeopardizing the integrity and usability of the overall system. We discuss a multi-dimensional dependency and conflict resolution mechanism to guide self-adaptation and find a stable reconfiguration of the system at runtime.