Service-Oriented Geographic Information Sharing and Service Architecture for Digital City

Geographic information sharing and service plays an important role in the implement of Digital City. The traditional development model that is based on common geographic information system can not accommodate for the geographic information sharing and service in distributed web environment. In this article, we firstly introduce the requirement of the distributed geographic information sharing and service and the character of service-oriented software architecture. Then the principle of the service-oriented architecture and the service-oriented geographic information sharing and service software architecture for digital city is put forward which includes GIS service, called VGS (Virtual GIS Services) and AGS(Application GIS Services) which reflects the operation service upper the VGS. At last, the web service based model integration in SOA is introduced. And an application example is stated to demonstrate the advantage and application model of the service-oriented geographic information sharing and service software architecture, which is the ocean current numerical simulation model call based on web service. The development and deployment of the model services example was used in Xiamen City, China.