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Root diagram

The root diagram (11.1) uses the packages Elements, Ownerships, Comments and Relationships from Abstractions.

root.png

The only thing new is that the derived properties (like ownedElement) are now marked as readOnly (this isn't mentioned in the text, only shown in the diagram). This makes sense, as a derived property is 'calculated' from other properties, hence it is not possible to set it directly. But this attribute was introduced in AbstractionsSmiley FrustratedtructuralFeature, so it wasn't available throughout the abstractions (it was used in the constraints package, but maybe this is an inconstency of the specs).

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