Connectors may be drawn that cross the boundaries of nested properties to connect to properties within them. The connector is owned by the most immediate block that owns both ends of the connector. Source OMG Systems Modeling Language (SysML) 1.6
Proxy ports identify features of the owning block or its internal parts that are available to external blocks through external connectors to the ports. They do not specify a separate element of the system from the owning block or internal parts. Source OMG Systems Modeling Language (SysML) 1.6
