UML22 — Section: 11.4 Classifiers Diagram

In "Figure 11.16 - The Classifiers diagram of the Constructs package", the end of the association between Classifier and Feature are named as "/featuringClassifier" and "/feature". But in "11.4.1 Classifier" the Assciations part illustrates the feature without slash. Also, in "11.4.2 Feature" the featuringClassifier is demonstrated without slash neither. According to UML series specifications, "/featuringClassifier" and "/feature" are different from "featuringClassifier" and "feature".

Figure 7.10 indicates that Classifier::/feature and Feature::/featuringClassifier are both derived unions. Classifier:: /feature is shown as derived in section 7.3.8 where it is described. Feature::/featuringClassifier is shown as derived in section 7.3.19 where it is described. So there are no issues for Superstructure