«Implementation Class»
Stereotype of the Class metaclass of the UML standard profile.
Identifies the implementation of a class in some programming language (e. g., C++, Smalltalk, Java), in which an instance may not have more than one class. This is in contrast to Class, for which an instance may have multiple classes at one time and may gain or lose classes over time, and an object (a child of instance) may dynamically have multiple classes. An Implementation class is said to realize a Classifier if it provides all of the operations defined for the Classifier with the same behavior as specified for the Classifier's operations. An Implementation Class may realize a number of different Types. The physical attributes and associations of the Implementation class do not have to be the same as those of any Classifier it realizes.