Abstract: This paper presents how to give a better Internet-based software architecture to fulfill more compliant and variation business requirement. It uses some application architecture design case study to show how to design a self-updating N-layered distributed application architecture using Microsoft .Net which is a new technology and enterprise design pattern knowledge.

Key words: N-layered distributed architecture; Self-updating; Design pattern; Microsoft .Net; Smart client; Web service & .Net remoting

摘要： 分析了面向Internet 的分布式应用设计面临的一些新问题，并以一个具体案例为背景，阐述了如何综合运用Microsoft .Net 新技术手段与企业设计模式，建立一套带有多级智能更新特性的N 层分布式应用架构的设计实现方法，为原有软件系统的适应性改造提供了行之有效的解决方案

关键词: N 层分布式应用；智能自更新；设计模式；Microsoft .Net；Smart client；Web service & .Net remoting