<xsd:attributeGroup id="attGp.fileId" name="fileId">
    <xsd:attribute id="att.fileId" name="fileId" type="xsd:string">
        <xsd:annotation>
            <xsd:documentation>
                <h:div class="summary" xmlns:h="http://www.w3.org/1999/xhtml">Information identifying the name of a file or other resource.</h:div>
                <h:div class="description" xmlns:h="http://www.w3.org/1999/xhtml">This allows an element (such as cml) to carry limited
                information about provenance such as the name of the document used to provide the
                content. It is not a complete solution but can help to protect a document becoming
                separated from its external metadata. It is restricted to the basic XML character set
                (printable ANSI) and whitespace (which should anyway be discouraged) is normalized to
                single space (attribute values cannot carry newlines). 
                Quotation marks and other horrors (as used in some OS)
                should be avoided. </h:div>
            </xsd:documentation>
        </xsd:annotation>
    </xsd:attribute>
</xsd:attributeGroup>