For updating data, OGSA-DAI provides another activity, the SQLUpdateStatement activity (see Figure 6).

Could be used to enhance OGSA to discover grid services.

可以用来增强OGSA以发现网格服务。

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In this article, we lay out the components of OGSA and explain their significance.

在本文中，我们全面介绍了OGSA的组件，并解释了它们的重要性。

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See [ 3] for a description of the mechanisms and interfaces defined in OGSA.

关于OGSA中定义的机制和接口的说明请参阅[3]。

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In fact, for OGSA to grow in acceptance, OGSI will need to be enabled on multiple hosting platforms.

事实上，为了让OGSA得到更多人接受，需要在多种宿主平台中启用OGSI。

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These solutions are intended to use OGSA-compliant services to provide a consistent view of all of the resources within the grid.

这些解决方案都是为了使用OGSA兼容的服务来对网格中的所有资源提供一个一致的视图。

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In the framework of OGSA, all resources are abstracted into grid service and the information of resources is described into service data.

在OGSA框架中，一切资源都被抽象为服务，而资源信息则被描述成为服务数据。

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OGSA also provides a grid security mechanism to ensure that all the communications between services are secure.

OGSA还提供了一种网格安全机制来确保服务间所有的通信都是安全的。

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As we ve seen, the OGSA architecture enhances Web services to accommodate requirements of the grid.

我们已经看到，OGSA架构增强了Web服务以适应网格的需求。

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You will write the create documents to identify the databases to be accessed through OGSA-DAI.

您将编写创建文档来确定通过OGSA-DAI存取的数据库。

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You don't need to iterate through the results row by row because OGSA-DAI returns all the rows together.

您无需对结果集进行迭代，因为OGSA-DAI会一同返回所有行。

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These applications comprise the fourth main layer of the OGSA architecture.

这些应用程序构成了OGSA架构的第四个主要的层。

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A systems architecture is evolving called the Open Grid Service Architecture (OGSA) to identify the components needed in a grid system.

一个名为开放网格服务架构（OGSA）的系统架构正在兴起，该架构用于确定网格系统中需要的组件。

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The tag states that the query result is delivered by the corresponding OGSA-DAI response document.

标记声明查询结果由相应的OGSA-DAI响应文件提供。

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Could be used to enhance OGSA to perform reliable and dynamic invocation of a Grid service.

可以用来增强OGSA以执行可靠的和动态的网格服务调用。

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As Figure 1 illustrates, SOAP messages are used for the communication between an OGSA-DAI client and server.

如图1所示，SOAP消息用于在OGSA-DAI客户机和服务器之间通信。

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Could be used to enhance OGSA to define the complicated relationships among Grid services.

可以用来增强OGSA以定义网格服务间的复杂关系。

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Thus, OGSA is encouraging the hosting environment to make modifications or additions for supporting the grid services.

这样，OGSA就可以促进对容器组件接口的修改或添加了。

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To run a query statement, provide a perform document that includes the query to execute within a SQLQueryStatement activity.

为了运行查询语句，OGSA-DAI提供包含在SQLQueryStatement活动中执行的查询的执行文档。

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In essence, the OGSA standard defines what grid services are, what they should be capable of, and what technologies they be based on.

本质上，OGSA标准定义了什么是网格服务，网格服务可以做些什么，以及网格服务所基于的技术。

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OGSA aims to address these issues by defining the basics of a grid application structure that can be applied to any grid system.

通过定义适用于任何网格系统的基本网格应用程序结构，OGSA希望能够解决前面提到的问题。

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