private PolicySourceModel initializeNewModel(final StartElement element) throws PolicyException, XMLStreamException {
PolicySourceModel model;
final NamespaceVersion nsVersion = NamespaceVersion.resolveVersion(element.getName().getNamespaceURI());
final Attribute policyName = getAttributeByName(element, nsVersion.asQName(XmlToken.Name));
final Attribute xmlId = getAttributeByName(element, PolicyConstants.XML_ID);
Attribute policyId = getAttributeByName(element, PolicyConstants.WSU_ID);
if (policyId == null) {
policyId = xmlId;