Anonymous ComplexType

The following XML schema construct: 

<complexType name="Ct1">
 <sequence>
  <element name="Elem">
  <complexType>
 <sequence>
  <element name="anon" type="string"></element>
 </sequence>
  </complexType>
  </element>
 </sequence>
</complexType>

Maps to:

The anonymous ComplexType within the "elem" element means "elem" is represented as a Class on the Business Object Model, with an assigned name of "ElemType". The containment of "ElemType" within "ct1" is represented by a Composition relationship.