UML22 — ConnectorEnd shall have references to provided or required interfaces

ConnectorEnd shall have references to provided or required interfaces. It helps to use assembly connectors in composite structure diagrams between parts and ports, connector will be able to display two compatible interfaces using "ball in socket" notation.
Now it is impossible to implement that, because there are no references to interfaces.

Resolution: There are two problems with this issue: (a) The ball-and-socket notation is unique to the components chapter, so this issue cannot be resolved in general for ConnectorEnd, but would have to be addressed specifically in the components chapter by introducing a subtype of ConnectorEnd. More importantly, though, (b) connectors do not have a semantic relation to interfaces. They connect ports or parts based on their compatability. The compatability between interfaces is a derived notation, and does not require metamodel support. Disposition: Closed, no change