A WMS_DescribeLayerResponse document is returned in response to a
DescribeLayer request made on a WMS.
LayerDescription: describes the contents of a NamedLayer,
the name of which is specified in the "name" attribute. If the
NamedLayer is not feature based, then the LayerDescription has no
further contents. If the NamedLayer is feature based then the
"wfs" attribute gives the URL prefix for the WFS containing
the feature data. Equivalently, the "owsType" and "owsURL"
attributes can be used to indicate the OWS type & base URL
of a service. The "wfs" attribute is retained for greater
compatibility with the WFS specification. The presently
recognized valid values for "owsType" are "WFS" and "WCS",
though more may be allowed in the future.
The LayerDescription contains one or more Query elements that
specify the feature-types present in the NamedLayer.
A Query uses the 'typeName' attribute to identify a feature-type.
This is a stripped down version of the Query element used in the WFS.