UML22 — Wrong subsets

Realization is a specialized abstraction relationship between two sets of model elements, one representing a specification (the supplier) and the other represents an implementation of the latter (the client).

ComponentRealization incorrectly subsets supplier to define realizing Classifiers (implementation).

Required changes:

"abstraction" must subset "supplier" and "realizingClassifier" must subset "client".

Section 7.3.45 does indeed make it clear that the specification is the supplier and the implementation is the client. The implementation depends upon the specification; the specification does not depend upon the implementation.