Internet GIS design model based on dynamical integration of distributed components and its implementation

This paper presented a novel development approach for Internet GIS based on dynamical integration of distributed components technology,which was potential to overcome the problems. Internet GIS applications developed with this approach could run at multi-mode,including stand-alone and network,and allowed users to add expected GIS components to the system at run time.Explained the mechanism of each working mode and discussed key technologies supporting the mechanism.To validate feasibility of the approach,proposed a prototype called FreeXGIS.It provided a paradigm for developing Internet GIS applications by employing distributed GIS components. Also presented several future works to enhance the performance and practicability of Internet GIS developed with this approach.