[Uml-devel] [Bug 53380] different sequence diagram messages

Jonathan Riddell jr at jriddell.org
Sat Dec 6 09:40:01 UTC 2003

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------- Additional Comments From jr at jriddell.org  2003-12-06 18:39 -------
Actually Jesse's professor is out of date!

>From UML 1.5 spec:

Stick arrowhead ---->
Asynchronous communication; that is, no nesting of control.

NB UML 1.3 and previous versions included a half-stick arrowhead notation in addition to the stick arrowhead notation.  This notation has been removed because the semantic distinction between the two was subtle and confusing.

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