SYSPHS12 — Overlapping Connectors in iBDs can give false impression of shared channel (and implied sum of flow)

Advise against diagramming style used in examples Figure 68 and Figure 69, which show overlapping Connectors in Internal Block Diagrams

In Figure 68: Internal structure of the humidifier, from a Port named vapourOut.

In Figure 69: Internal structure of the vapor generation plant, from a Port named temperatureOut.

This can give a false impression of shared channel (and implied sum of flow).

In the case of electrical current, the lines drawn that way indeed by convention imply currents meeting a node, whereas in the SysML diagram there is no node at all.