Design and Implementation of WSRF-Based GIS Service in Spatial Data Grid

The integration of services in heterogeneous, distributed grid environment is dynamic and diverse because of the disparate resources. Hence, this integration can be technically challenged due to the need of achieving various service when running on different platforms. So, in a grid environment, implementations of GIS (geographic information system) should not only concern their internal spatial characteristics, but also deal with the grid resources properties. In this paper, we brought forward an architecture of spatial data grid, of which the OGC-compliant service, Performance Management Service, wrapped into standard WSRF services, providing a transparent way to select the appropriate spatial data service providers in a dynamic spatial data grid and hides the complexity of the interface and scheduling strategy from users to coordinate those required services. Experiments show that our design of WSRF-based GIS services can perform guarantees and lead to better spatial resource sharing and significant service performance.