Open GIS Consortium (OGC) Geospatial Web services have been introduced to overcome
spatial non-interoperability problem associated with most geospatial processing systems. Although OGC
geospatial Web services provide interoperability among heterogeneous geospatial processing systems, in
some cases they can not provide required performance and efficiency. This paper proposes a hybrid
architecture which can efficiently provide interoperability and high performance for transferring geospatial
data. It is suggested that making use of Web services technologies for implementing OGC geospatial Web
services would significantly facilitate sharing geospatial data in heterogeneous environments like Web. In
addition, making use of a proprietary and platform-dependant technologies can provide best performance
and efficiency in homogeneous environments like an internal network. In this context, design and
development of an OGC geospatial Web service using hybrid architecture of Web services Technologies
and .NET Remoting technology (as proprietary and .NET specific technology) is described. Based on our
evaluations and practical tests, the hybrid architecture proved to be an efficient solution for development of
geospatial Web services.