<das:element> tag describes a single XML tag in the ouptut XML file.
<das:element name="employees" namespace-prefix="ns" namespace-uri="http://mycorporation.com">
Attributes:
id - unique identifier of this resource in the current processing job.
name - the name of the element in the resulting XML.
namespace-prefix - the prefix of the namespace of the resulting XML tag.
namespace-uri - the URI of the namespace of the resulting XML tag.
Children elements:
<das:element> - elements can be nested.
<das:element-sequence> - describe a sequence of children elements of the current element.
<das:attributes> - element attributes in the resulting XML.