数字城市应用服务平台体系结构研究

数字城市源于数字地球的概念,本质上是基于计算机网络和城市信息资源的开放的、复杂的适应系统(关于数字城市的概念,作者已在《数字城市,创建21世纪的智能服务平台》中论述,该文在《计算机科学》2002年No.7发表)。而随着Internet的发展,Web服务将成为第二代Internet的主要内容和发展趋势,多层B/S结构的Web系统将发展到开放性服务系统。因此,网络应用发展的总趋势是实现从数据、信息到服务的交换、共享与互操作。另一方面,目前大多数的城市信息系统和城市信息网站

A Research on Digital City Application Service Platform Architecture

An analysis is done on the requirements for information resource exchange, integration, share and interop-erability in urban application. More analysis on the development trends of Web service technologies and applicationservice models are made. Then the concept and models of Digital City application services are discussed. Furthermore, the concept, model and architecture of Digital City Application Service Platform are put forward. These mod-els and architectural designing have been applying to the Project of Beijing Information Resource Network Center anda key technological framework has been implemented accordingly.