Research Of GIS Integrated Services Framework Based On Web Service And Study Of Model Service

Geographic Information Systems (GIS) has been widely applied in all kinds offields such as geography, resourses management, land planning, environmentmonitoring, city planning, and so on since it came forth in 1960s'. With the rapiddevelopment of the technologies of computer and information, there have been somany great achievements in the field of GIS. Specialization and socalization is themain direction in which GIS will go in the future.The technology of Internet (especially Word Wide Web) provides a new widestage for GIS services. In order to fully apply the GIS information and functions, thispaper analyses and concludes the contents and modes of GIS services (especially GISInternet services), and studies the advanced achievements of theories, methods andtechnologies of GIS services such as Open GIS specification made by OGC,distributed compute technology, Web Service technology, g.net framework andArcWeb Services developed by ESRI, and so on. Based on the above analysis andresearch, this paper advances the framework of GIS integrated services based on WebService.The framework of GIS integrated services based on Web Service is a GISintegrated framework, which is based on the technology of Web Service and providesdata service, function service, model service, workflow service, download client toolservice, and so on. Using Web Service technology and services integration are the twomain characters of the framework. At present, Web Service is one of the mostinteresting study points in the field of computer science. It has strong capabilities torealize all kinds of GIS services. Services integration is that the GIS services providedin this framework are not only the geographic information data services, they alsoinclude all kindes of GIS services to the professional and/or curbstone users byintegrating other technologies such as Model Base and Knoledge Base.Model service is the primary research content in this paper. Through the study ofthe concept and category of model, the design and building method of Model BaseSystem and the methods for integration of GIS and application analysis models, thispaper advaces the framework of model service under the framework of GIS integratedservices based on Web Service.According to the above framework of services, this paper designs and developesthe archetype system of model service, and applies it into a project. The applicationproves that the framework of GIS integrated services base on Web Service in thispaper is feasible and effective. In addition, this paper studies and describes the mainsoftwares and technologies used in the archetype system including Microsoft .NETIDE, ESRI MapObjects, ESRI ArcIMS, and so on.