摘要： 分析了传统3层体系结构的不足，给出了一种基于.NET技术的3层体系结构Web应用的设计方法，并示例说明了如何构建3层体系结构的Web应用系统。

关键词: 3层体系结构, .NET, Web, service, ASP.NET, ADO.NET, 类

Abstract: The paper discusses some limitations in traditional three -tier architecture. Then it gives a design method of three-tier architecture in Web application based on .NET, and illustrates how to build Web application system using such technology.

中图分类号: 

• TP393.02