public function marshall(QtiComponent $component)
    {
        $element = self::getDOMCradle()->createElement($component->getQtiClassName());
        $this->setDOMElementAttribute($element, 'identifier', $component->getIdentifier());
        $this->setDOMElementAttribute($element, 'minConstraint', $component->getMinConstraint());
        $this->setDOMElementAttribute($element, 'maxConstraint', $component->getMaxConstraint());

        return $element;
    }