[news.eclipse.tools.uml2] Message signature

["Eric Kop" <koperic@xxxxxxxxxxx>]

Hi,

I have a question regarding the signature of a message. The UML2.1
specification says that "if both a sending and a receiving message event are
present, the signature is obtained from the sending event". This seems odd
to me, I would expect it to be the receiving event?

I created two lifelines with connectable elements of respectively Class A
and Class B.
I created a synchCall message between the lifelines with a 'sending'
messageOccurrenceSpecification referring to a sendOperationEvent referring
to an operation defined on Class A; and with a 'receiving'
messageOccurrenceSpecification referring to a receiveOperationEvent
referring to an operation defined on Class B. I would expect the signature
of the message would be the operation of the receiveOperationEvent, because
it is a call to an operation on Class B.

Is the specification wrong or is my interpretation/expectation wrong?

Regards,
Eric Kop