an association that is also a class
A class that describes a relationship between two classes or between instances of two classes. The properties of an association class include pointers, or references, to the two classes or instances. The Association qualifier is attached to every association class for identification.
A Class that represents and adds information to the Association between two other Classes.
(UML) A class that contains attributes which are the properties of an association rather than a regular class. manymany.php
A modeling element that has both association and class properties. An association class can be seen as an association that also has class properties, or as a class that also has association properties.