What tools exist to map complex sitemaps & user permissions

I’ve been looking around and haven’t been able to find anything that focuses on visualing or mapping a complex permissions with relations to content structures that you might expect on a intranet for example. I’m aware of UML tools like Dia but thought there might be something more specific.

Any recommendations on these or closely related project ‘planning’ (not so much management) tools?

Sitemaps and user permissions are very different subjects, its not clear what you are trying to achieve???