| WebGIS technology is the result of the combination of GIS and Internet technology and the development of GIS technology . It is inevitable that GIS technology moves towards Socialization. It is one of the key technology of realizing "digital city". "digital city" is a new concept of new progress and is a perfect frame work of WebGIS. WebGIS is the base of construction and practice of digital city. This paper introduces the concept, structure, function and realizable technology of WebGIS The existing problems, such as bottleneck of transfer rate of data, geographical information sharing, interoperability, distributed work, etc are discussed. In other WebGIS ArcIMS analysison the base of relevant technologies, ArcIMS designed a tourism-based Geographic Information System program, Tourism in conjunction with urban characteristics and the examples given... |