The server side can be constructed based on J2EE
architecture. The system architecture, system functions, and
system security are the key technical problems should be
investigated. The architecture of the GIS Web service can be
logically divided into different layers with a particular service.
Application layer includes the map check devices, customer's
map divices, and sensors clients. Web application services
layer includes application integration servers, soap servers,
spatial information operation components, such as mobile
positioning server and registration server components.