介绍了OPC技术产生的背景以及OPC数据存取规范。

This paper briefly introduces the background of OPC technology and its data access specification.

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根据OPC数据存取规范，运用MFC和面向对象的设计模式开发OPC服务器程序。

According to OPC data access specification, develop OPC server program using MFC and object-oriented design patterns.

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DAIS规范旨在描述如何存取网格环境中现有的数据资源。

The goal of the DAIS specification is to describe how to access existing data resources in a grid environment.

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