What I find troubling about that page is that it does not qualify up front whether the dependencies are:
A. Also depended upon by other, coequal unrelated classes, possibly maintained by others, OR
B. Depended upon only by a single class (of higher functionality)
Situation A is sometimes called a portability interface; B might be called an internal structuring interface.
The difference has crucial implications for social power relationships between the human developers and users involved.
