Is-A Relationship in UML: DRM Example

Feature

Point Feature

Linear Feature

Areal Feature

<Point Feature>, <Linear Feature>, and <Areal Feature> are concrete.

<Point Feature> inherits from both <Primitive Feature> and <Feature>.

<Feature Hierarchy> inherits from <Feature>.

These 3 classes

are abstract.

Feature Hierarchy

Primitive Feature

DRM Diagram - Sheet 8

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