UPDM — Relationships defined using Property "type" are not intuitive

The profile uses a non-intuitive construct for defining relationships. There are many examples where a stereotype extends Property and the "type" feature of Property is to be set to an element of another stereotype. Although this is legal UML, it is not a very good way to define a relationship between the owner of the Property (say Abc) and the "type" element being referenced (say Def). Because the relationship is defined in this manner and not using one of the UML Relationship types, there is no way to show a line on a diagram that represents this relationship between Abc and Def. The user has to examine the properties and the "type" feature to determine if such a relationship exists. This is a manual process and is not the normal way in UML to define a relationship. In fact, if a stereotyped association was used instead, this property on Abc would be created automatically and the association could be shown on a diagram. Some examples of stereotypes that extend Property in this manner are: EnvironmentalProperty, ItemInConcept, KnownResource, etc

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