15 comments

[ 5.1 ms ] story [ 48.6 ms ] thread
We make generalizations about objects in order to make sense of the world. When we see something, we want to know what it is and how to react to and interact with it.
Generalization is a relationship between two entities such that one entity (child) inherits the functionality of another entity (parent). It can exist between two actors or two use cases. It is represented by an arrow in the direction of the parent use case or actor.