The International Archives oj the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B7. Beijing 2008 
required certificates. After examine and approve, then user get 
the data. The data apply and approve e service system can 
simplify most of the procedure and users can submit the 
certificates through the net. 
The five service systems are not isolated; they can navigate 
from one service system to the other service system if the 
interested data are served by more than two service systems 
through open interoperability interfaces. Using these interfaces, 
not only the five service systems can invoke each other, but also 
the other e-govemment systems can invoke and sharing the data 
provided by the information sharing platform. User can first 
search the metadata of the interested data and get the data detail 
information and service information through the metadata. If 
the data also be served by the Spatial data sharing service 
system based on gridmap technology or the Spatial data sharing 
service system based on WebGIS, they can navigate to the 
service directly through the metadata service and enjoy the 
function provide by that service. Vice versa, users also can 
navigate through other service system to the Metadata service 
systems. The five systems get together can satisfy variety of 
demand of the information of land and resources. 
4. CONCLUSION 
The information sharing platform of Land and Resources 
implementation now is ongoing. The final aim of the 
information sharing platform of Land and Resources is realize 
unify data sharing of Land data, geology and mineral resources 
data, ocean data, survey and mapping data which dispersed in 
distributed departments and firstly realize unify Land and 
resources information data sharing, Which aims at across 
departments of land and resources. 
The open architecture of information sharing platform of Land 
and Resources ensure the sharing platform not only satisfy the 
data sharing requirement among Land and Resource system, but 
also can be invoked and shared by other application systems of 
outer domain. The final aim of the information sharing platform 
is to lets every one, very system and every service that need 
information of Land and Resources can get and enjoy the 
information easily. 
REFERENCES 
Gong Jianya, Xu Feng, Wu Huayi, Li Haochuan, Xie Jibo , 
2005. Multi-level Heterogeneous System and Key 
Technologies of Land and Resources Information Exchange 
System. Land and Resources Informatization, pp. 22-25. 
Wenjue Jia, Zhou zhou, 2007. Geospatial Data Sharing 
Models of Land and Resources. Land and Resources 
Informatization, pp. 24-31. 
Gong Jianya, JIA Wenjue, CHEN Yumin, XIE Jibo, 2004, 
Development from Platform GIS to Cross-Platform 
Interoperable GIS, Geomatics and Information Science of 
Wuhan University, pp. 985-989. 
Alessandro Annoni, Orchestra; Open Architecture and 
Spatial Data Infrastructure for Risk Management, 
(http://www.eu- 
orchestra.org/docs/Paper_Hannover_Orchestra.pdf) 
ISO 19115 The OpenGIS Service Architecture, 2001