Spatial data sharing for E-government based on metadata

With the E-government development,information data sharing is becoming more and more important.This paper aims to provide a solution in spatial data sharing for E-government based on metadata.It will touch on the origins of E-government and metadata,and then study integrated and secured management of Geo-Spatial data.It is a networked system realizing an integrated mechanism of catalogue services,metadata integration,distributive unstructured data management,security control and GIS data interoperability.It provides an extensive support for sharing of both spatial and non-spatial data.