EXPRESS_ — Scope of Attribute is not modeled

In 8.11.1.3, AssociationEnd: of-entity, the text of the Note defines an unmodeled (derived) association that subsets the TypeElement.namespace association for Attribute. And the /owning-entity association end depicted in Figure 12 is not that association, since the inverse relationship defined in 8.11.3.3 (EntityType::attributes) includes the attributes of subtypes.
As a consequence, the association that defines the namespace/scope of the Attribute as a TypeElement is not actually modeled.
Proposed Resolution:
Model the derived association: :of-entity->declared-in as ":namespace" explicitly in Figure 12 and in 8.11.1.3, and show it as subsets TypeElement:namespace.

The derived namespace association should be explicitly modeled for Attribute, essentially as indicated in the issue statement..