Integrated visualization of distributed spatial databases An open source Web-GIS approach

With the development of Internet GIS also known as Web-GIS, there has been an increase in the development of various information systems dealing with geospatial data. Open source softwares being cost effective, reliable and flexible is becoming a preferred technology by researchers and academicians. Presently the integration of geospatial data scattered around various organization which refers to a common geographical space is becoming a challenge. In this paper an architecture is defined and implemented using open source Web-GIS tools like GeoServer, PostGIS and OpenLayers for integrated visualization of geospatial data present in various spatial databases located in different geographic locations.