Actor Hierarchy


I have a requirement to show actor hierarchy in UML.

Consider the following scenario:

There are three actors: A, B and C. C have access to some of the system features. B has access to all the features that of A and additionally few others. C has access to all the features of B and additionally few others. I want to depict this in a diagram. How can I do the same?

The idea for such a presentation is to make the Use Case diagram less cluttered. If we can show this actor hierarchy, then it is possible for us to show only the features specific to each actor in the Use Case diagram.

Please respond. Thanks in advance.

Aurovinda Mohanty

If you model ur actors as shown in the attached file, that exactly means what u want to model.