The Architecture of SOA-oriented Urban Spatial Information Sharing Platform

In order to break the bulwark and eliminate the information isolated island in UGIS, the architecture of SOA-oriented urban spatial information platform is proposed. The SOA-oriented urban spatial information management and service architecture is designed and the key technologies are discussed in detail. The architecture is based on service and adopts the convenient and widely used SOA. It contains five logical structures, which are application layer, spatial information publishing layer, and spatial information service layer, spatial information supporting layer, the basic supporting layer. Through the five layers and the key technologies in them, the architecture can connect the computing, data and software resources which distributed in each urban department and accept users´ access requirements by Web portal everywhere. The key technologies of ontology-based urban spatial information semantic sharing model and the urban spatial information dynamic aggregation model are discussed in detail. The architecture can solve the interoperability problem of multi-source systems and give a guide theory model and implement scheme for the urban spatial information sharing.