Interoperability GIS Model and It''s Implementation Approach on the Architecture of Spatial Information Infrastructure
互操作GIS模型及其在空间信息基础设施体系结构中的实现途径

Increasing application of Geospatial information requires integration , fusion and interoperability of current monolithic GIS, especially of more complex and multidisciplinary application. Interoperability is the base for information integration and fusion. A five\|level GIS interoperability model is given. The spatial information infrastructure (SII) provides a sharing spatial information framework, architecture and an interoperability platform for geographical information system. This paper studies architecture of spatial information infrastructure, and gives the relationship between GIS interoperability model and spatial information infrastructure architecture. We consider GIS interoperability model provides theory base for SII, and SII provides an implementation platform for GIS interoperability model.