Assembly connector properties

[mse]

The assembly connector notation seems rather primitive. I can only draw the connector between two elements, but afterwards I cannot choose which <<Interface>> is involved. Is this connector simply decorative? It just seems like another association-like connector.

[qwerty]

I rarely use it. Only in wireframes for quick sketches. Later I use provided/require IFs which formerly I connected with a dependency. Now I tend to use the assembly here too since EA (now) draws them always the right way around.

q.