function get_qa_level_test_result($registry_object, $relatedClassStr)
 {
     $xslt_processor = Transforms::get_qa_level_transformer();
     $dom = new DOMDocument();
     $dom->loadXML(str_replace('&', '&', $registry_object->getRif()), LIBXML_NOENT);
     $xslt_processor->setParameter('', 'relatedObjectClassesStr', $relatedClassStr);
     // XXX: TODO!!!
     return $xslt_processor->transformToXML($dom);
 }