Using Content from Other Schemas
The any element is used to add an element from another namespace to the schema. It allows any element from the specified namespace(s) to appear in the containing schema. The content of the any element can appear as a child element of complexType, group, sequence, all, or choice elements.
Example
The following example allows catalog
element to contain any well-formed XML data that appears in the fabrikam
catalog.
<xs:element name="catalog"> <xs:complexType> <xs:any namespace="http://www.fabrikam.com/catalog" minOccurs="0" maxOccurs="unbounded" processContents="skip" /> </xs:complexType> </xs:element>