Web GIS
网络地理信息系统

Web GIS is current GIS developing hotspot, the article beginning with analyzing the computing evolution process, points out that the Web distributed environment is the right way to make the traditional GIS industry reach the opening ideal, further step the paper summarizes the conception,characteristics, types and framework of Web GIS,try to bring forward the best plan to publish spatial data on network by analyzing and comparing the realizing methods(CGI,Plug-ins,Java),including network protocol extend ,new data model and its algorithm, complex data integration, and network optimizing method(distributed parallel computing), at last realizes it by a Web GIS browser (Java applet) programming case.