The actual class hierarchy
Attributes definition and usage:
A? defines: a,b,c; uses: a,b,c
B? defines: d,e,f,g; uses: e
The target class C inherits a,b,c,d,e,f,g
Notes:
Here a quite trivial example for reducing the complexity of our target class.
Out target class is represented by class C in the class tree, and inherits 7 attributes a,b,c,d,e,f,g.