A dynamic service composition model and select algorithm based on grid was presented.

提出了基于网格的动态服务组合模型与算法。

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The paper gives a verification of the soundness and performance analysis of this Web services composition model based on SPN-NET.

文中给出了基于SPN - NET模型的服务组合合理性验证和性能分析方法。

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They provide a uniform interface to other aspects of the composition model and specify how a client can access a component in a uniform way.

构件包装器的主要功能是屏蔽构件的异构性，以一致的方式表示构件及其特征，类属构件模型提供了构件包装器接口的定义。

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Each day, the scientific community collects millions of individual Earth observations, allowing us to examine, monitor, and model atmospheric composition, seismic activity, ecosystem health, weather patterns, and hundreds of other characteristics of our planet.

WHITEHOUSE: Office of Science and Technology Policy Blog

"The composition of our services revenue model is evolving, and you will hear more about these services as they are introduced, " Mr. Heins said.

WSJ: RIM Places Risky BlackBerry Bet