提出了网格环境下的空间数据协作生产模型，分析了其质量控制策略，通过系统原型对本文思想进行了验证。

A collaborative spatial data production model in grid environment is proposed, especially the quality controlling policies are analyzed, and all above is validated in the system prototype.

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他们远远比我们了解数据，因此与他们进行一点点有效的协作就可以显著地减少整个开发成本。

They understand the data far better than we do, so a little bit of effective collaboration with them can dramatically reduce overall development costs.

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在运行时，WebSphere Portal属性代理使用类型和名称空间属性将源数据与协作portlet的动作匹配。

At runtime, the WebSphere Portal property broker USES type and namespace attributes to match source data to actions on the cooperative portlet.

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