protected function processDmdSec($xml, $informationObject = null)
 {
     if (!isset($informationObject)) {
         $informationObject = new QubitInformationObject();
     }
     foreach ($xml->xpath('.//mdWrap/xmlData/dublincore/*') as $item) {
         $value = $item->__toString();
         if (0 == strlen(trim($value))) {
             continue;
         }
         switch (str_replace('dcterms:', '', $item->getName())) {
             case 'title':
                 $informationObject->title = $value;
                 break;
             case 'creator':
                 $informationObject->setActorByName($value, array('event_type_id' => QubitTerm::CREATION_ID));
                 break;
             case 'coverage':
                 $informationObject->setAccessPointByName($value, array('type_id' => QubitTaxonomy::PLACE_ID));
                 break;
             case 'subject':
                 $informationObject->setAccessPointByName($value, array('type_id' => QubitTaxonomy::SUBJECT_ID));
                 break;
             case 'description':
                 $informationObject->scopeAndContent = $value;
                 break;
             case 'publisher':
                 $informationObject->setActorByName($value, array('event_type_id' => QubitTerm::PUBLICATION_ID));
                 break;
             case 'contributor':
                 $informationObject->setActorByName($value, array('event_type_id' => QubitTerm::CONTRIBUTION_ID));
                 break;
             case 'date':
                 $informationObject->setDates($value);
                 break;
             case 'type':
                 foreach (QubitTaxonomy::getTermsById(QubitTaxonomy::DC_TYPE_ID) as $item) {
                     if (strtolower($value) == strtolower($item->__toString())) {
                         $relation = new QubitObjectTermRelation();
                         $relation->term = $item;
                         $informationObject->objectTermRelationsRelatedByobjectId[] = $relation;
                         break;
                     }
                 }
                 break;
             case 'format':
                 $informationObject->extentAndMedium = $value;
                 break;
             case 'identifier':
                 $informationObject->identifier = $value;
                 break;
             case 'source':
                 $informationObject->locationOfOriginals = $value;
                 break;
             case 'language':
                 $informationObject->language = array($value);
                 break;
             case 'isPartOf':
                 // TODO: ?
                 break;
             case 'rights':
                 $informationObject->accessConditions = $value;
                 break;
         }
     }
     return $informationObject;
 }