从方便性、协同性、共享性、开放性和安全性这五个角度出发，提出了上海建设网上城市的通用系统架构模型，阐述了实现该架构模型的相关关键技术，介绍了上海市在网上城市建设方面的工程实践，并提出了发展展望。

To solve the problems in the current information system of e-city, such as convenience, cooperation, share, openness, security, etc., a general system architecture model of e-city in Shanghai is proposed in this paper. According to this architecture, key technologies to the implementation, project practice effects and the developing perspective of Shanghai's e-city are introduced.