Behaviour adaptation of context-aware web services in pervasive computing environment

Behaviour adaptation of context-aware web services in pervasive computing environment
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普适计算环境中上下文感知Web服务的行为适应

DOI:
10.1504/ijwmc.2012.046785
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发表时间:
2012-05
影响因子:
--
通讯作者:
Chen, Zhiqing1
Chen, Zhiqing1
中科院分区:
--
文献类型:
--
作者:
Zhang, Xiuguo1;Li, Jiatong1;Chen, Zhiqing1

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普适计算被认为是下一代的计算环境,在这种环境中,用户可以随时随地访问资源和获得服务。在本文中,我们使用上下文感知的Web服务来实现普适计算环境的“无处不在”的功能。本文提出了一种新的上下文感知Web服务的行为自适应机制,旨在有效地处理和利用上下文信息,实现普适计算环境下Web服务的行为自适应。我们使用寄存器链接来存储来自外部环境的上下文信息。通过对注册链接的行为进行建模,我们提出了Web服务如何动态响应其上下文变化。我们还引入了基于约束的行为版本选择机制,并设计了一个上下文感知Web服务的行为自适应框架。最后,我们提出了一个应用程序的情况下,显示如何描述服务的行为和应用程序可以适应上下文的变化。
Pervasive computing is regarded as the next generation of computing environment in which users can access resources and obtain services anywhere and anytime. In this paper, we use context-aware web services to realise the 'everywhere' feature of pervasive computing environment. We explore a novel behaviour adaptation mechanism for context-aware web service, aim to effectively process and take advantage of contexts and realise behaviour adaptation of web services in pervasive computing environment. We use register link to store context information which comes from external environment. Through modelling the register link's behaviours, we present how a web service can respond to its context changes dynamically. We also introduce constraint-based behaviour version selection mechanism and design a behaviour adaptation framework for context-aware web service. Finally, we present an application case to show how to describe service behaviours and how the application can adapt to context changes.
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