GML Feature schema. Copyright (c) 2001-2002 OGC, All Rights Reserved. An abstract feature provides a set of common properties, including id, metaDataProperty, name and description inherited from AbstractGMLType, plus boundedBy. A concrete feature type must derive from this type and specify additional properties in an application schema. A feature must possess an identifying attribute ('id' - 'fid' has been deprecated). deprecated deprecated in GML version 3.0 Container for a feature - follow gml:AssociationType pattern. Container for features - follow gml:ArrayAssociationType pattern. Makes boundedBy mandatory - used to build Feature Collections A feature collection contains zero or more features. Concrete generic feature collection. Bounding shape. deprecated deprecated with GML version 3.0 Envelope that includes also a temporal extent. generalised locator property - follow gml:AssociationType pattern G-XML component deprecated deprecated in gml 3.0