UML14 — Clarify the origin of an Action in a Collaboration.

Actions seem to be owned by the Message in the following paragraph.

Section 2.10 page 2-130. "In the metamodel a Message defines one specific
kind of communication in an Interaction. A
communication can be e.g. raising a Signal, invoking an Operation, creating
or destroying an
Instance. The Message specifies not only the kind of communication, but also
the roles of the
sender and the receiver, the dispatching Action, and the role played by the
communication
Link. Furthermore, the Message defines the relative sequencing of Messages
within the
Interaction."

Is the Action a reference to a Action in the Sender, as the meta-model
suggests, or is it owned by the Message as the above suggests?

Please clarify.

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