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As the deeply and broadly applying GIS, GIS has turned into the main technology of management of spatial information as well as integrated platform carried with spatial information, and gradually melted into mainstream of IT. However, due to the content and source diversity of spatial data and the platform difference of GIS software, GIS application is still a "black box" which leads to difficulties of data and functions sharing between GIS applications. Hence, both study On interoperability technology of GIS and solution on interoperability bottleneck between GIS applications have become the most valuable research in GIS domain. Based on Web service and OWS model of OGC, this paper built Application Integration Layer, Web Application Manager Layer, Service Registry Layer, and GML Spatial Data Storage Layer for GML Spatial Interoperability Framework. This paper established SOAP generation mechanism, WSDL description mechanism and UDDI service registry mechanism for GML Spatial Service, and provided templates for Spatial Web Service Interoperability.
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