5 Diagrams (1 BDD and 2 IBDs, 1 Instance Table and 1 Sebset/Redefine Matrix), 6 Classifiers to show how to model a Cable such as a DVI Splitter.  The 2 IBDs allow for showing both using Ports and not using Ports, as it requires different Association Blocks. (Actually there is a way to do it with 1, but that's even more advanced and would complicate the explanation).  The instances show all the valid connections.