Informative, active or transformative properties that apply to each instance or all instances of the semantic class
Introduction to the notion
The semantic class carries properties that are informative, active or cooperative (structural) in nature.
They presuppose an action or a transformation of the object. They are written in UML, in the form of an operation. If the object is transformed by the action requested, the operation will be managed by a state machine.
They are the classification and association relations (including composition).