Data from some WFS services can also be downloaded as CSV, Shapefile, KML, and JSON. WFS services deliver data in a standard XML format. Features displayed in the map images can be queried to view descriptive information. WMS and WMTS services deliver spatial information as map images (eg, JPEG, PNG). Web Map Services (WMS) and Web Feature Services (WFS) provide a way of delivering geoscience maps and data using established internet protocols developed by the Open Geospatial Consortium.
Web Services Web Map Services and Web Feature Services