Relationship Class ================== .. php:class:: Relationship Represents an relationship between an Element and/or Requirement .. php:method:: __construct(RelatableInterface $source, RelatableInterface $destination, RelationshipType $type) Creates an Relationship :param RelatableInterface $source: The relationship source :param RelatableInterface $destination: The relationship destination :param RelationshipType $type: The relationship type :returns: A new instance of ``Relationship`` :rtype: Relationship