In SysML and UML 2.5, the AssociationNode is used to create N-Ary associations between Classifiers.

To create an Association between two Model Elements or Classifiers, you create an Association or AssociationClass and then relate the Association or AssociationClass to each Model Element or Classifier through an AssociationNode to Class as Property relationship. For instructions on how to do this, see How to create an Association.