This XML Schema defines the DescribeFeatureType request and response XML elements and types. SOS is an OGC Standard. Copyright (c) 2006,2010 Open Geospatial Consortium, Inc. All Rights Reserved. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ . Request to a SOS to perform the DescribeFeatureType operation. This operation is designed to request detailed information concerning the observation's target Identifier of the feature for which detailed information is requested. These identifiers are usually listed in the Contents section of the service metadata (Capabilities) document.