Can association lines be merged in one line in UML?

Question

Is it in accordance with the UML standard to merge a few association lines into one line, like on the attached diagram?

Answer 1

Yes, I think this is allowed as a notational variant, which implies that all association ends that participate in the merger, have the same properties (e.g. the same multiplicity, navigability, visibility, etc.).

Figure 11.34 in the UML 2.5 spec shows an example of such a merged association end sharing the same source segment of the association line.