An adaptive requirement framework for SCUDW are middleware in ubiquitous computing

Authors:
Qing Wu;Danzhen Wang
Affiliations:
Institute of Computer Application Technology, Hangzhou Dianzi University, Hangzhou, Zhejiang, P.R. China;Institute of Computer Application Technology, Hangzhou Dianzi University, Hangzhou, Zhejiang, P.R. China
Venue:
WSEAS Transactions on Computers
Year:
2009

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Abstract

Due to high dynamic computing environments of ubiquitous computing, it poses many challenges for software middleware technologies. The component-based middleware systems should possess self-adjusting functions for adapt to internal and external environments variation. This paper firstly describes a middleware called SCUDWare for smart vehicle space in ubiquitous Computing. Then we propose a middleware requirement model including users' and resources' variable requirements. After that, a component dynamic behavior model is presented. Next, an adaptive requirement framework is given in detail, which can automatically tune middleware configuration parameters, and conduct a safe and dynamic component composition to preserve the middleware QoS requirements. Finally, it is prototyped and validated by using a mobile music program to analyze performance of this framework.