After analyzing Cluster techniques and N-tier architectures, the paper describes in detail the construction technologies and methods of Cluster and N-tier architecture electronic commerce systems.

本文在分析机群技术和N层软件体系结构的基础上，介绍了基于机群和N层体系结构的电子商务系统构建技术和方法。

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Banks enable people to borrow money, and, today, by operating electronic-transfer systems, they allow commerce to take place without notes and coins changing hands.

NEWYORKER: What Good Is Wall Street?

Matas says U.S. Department of Commerce figures for sales of electronic systems, a wider category that includes consumer electronics, computers and other electronic products, is slumping by about 4% for 2002.

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