The rapid development of Internet GIS makes it possible to access spatial information

however

the complex and various geodata formats limit users to transparently access remote geodata and seamlessly process differently historical

different data format in enduser side. The paper brings up the concept of virtual DBMS in server side for organization and management of distributed heterogeneous database and finishment of heterogeneous geodata access and interoperability. By VGDBMS

users can acess and process geoinformation being in different locations. Finally

as an aplication example of Internet GIS GeoSurf

based on Java

crossplatform

distributed computing and browser/server

is represented in support of above mentioned issues.