Constructing Self-Adaptive Software in Ubiquitous Computing Space

Self-adaptation endows software with the ability to adjust its behavior according to the changes in its environment. It is an effective approach to deal with dynamic environments, such as ubiquitous computing spaces. However, adaptability will significantly complicate software implementation and bring great challenges to software engineering practices. This paper presents an engineering approach for self-adaptive software, which systematically enables the reuse of software adaptation on both software architecture and development process. We propose a novel conceptual model as the foundation of our work at first, in which each software entity can imitate the reacting/joining behavior pattern of the individuals in natural adaptive systems. And then, mainly based on the enhancement of component technology, we map this conceptual model into a practical and reusable software architecture. A software factory with a model-driven process is presented as well. Several applications have been developed to validate the effectiveness and generality of our approach.

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