Guida per l'amministrazione di sistema dello GNOME Desktop - GNOME Library. UML Reference Card. Collaboration (renamed "Communication" in UML2) Diagrams are an alternative presentation of a sequence diagram.
They tend to be more compact, but harder to read, than the equivalent sequence diagrams. The example at left is identical in meaning to the Sequence-Diagram example at the end of the previous section. Mozilla Developer. Photo.net.