Integrating WebGIS with WFS and GML

A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. With the advancement of technologies and internet it allows for the emerging of GIS to be considered as a WebGIS. In order to build a WebGIS for connecting to geodata sources we need commonly acceptable standards for understanding of Web interfaces. OGC standards (WMS and WFS) for Web services interfaces and data interchange are used in WebGIS. For Data access and exchange, the OGC (Open GIS Consortium) WFS is used to access and manipulate feature-level data. The main advantages of this approach are interoperability and feature-level data sharing. Web services technologies with WFS make use of XML database to store geospatial data as GML. In this paper, we analyzed different interfaces provided by WFS like GetCapabilities, DescribeFeatureType and GetFeature and integrate it with Geoserver open source GIS to limit access of data and transactions.