Abstract

Ubiquitous service needs to react to context as well as normal input. Therefore, services in ubiquitous computing would be implemented as context aware applications, which handle two different types of input; one is explicit as a normal type of input and the other is implicit as context. However, Ubiquitous Computing requires the seamless adaptation and extension of context aware applications. Some approaches to fit the two requirements, the adaptation and the extension, are based on Component-Based Software Development paradigm instead of Service-orientation, even though the service-orientation has the abstraction, which could support the seamless adaptation, and it consists of looselycoupled services, which could support the seamless extension. That’s because the know-how of Component-Based Software Development has longer history and is more proved than the service-orientation. This paper proposes a convergence of context-awareness and service-orientation according to the principles of service-orientation, and explains its contribution compared to other work of combining the context awareness and the service-orientation. Key words:

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