Issue 4728: UML 1.4: Action problem in Collaborations (uml2-superstructure-ftf)
Source:  (, )
Nature: Uncategorized Issue
Severity: 
Summary: n UML 1.4, an Action is only used in the context of a StateMachine or a
CollaborationInstanceSet.

In a CollaborationInstanceSet, an Action is required as the cause of a
Stimulus [UML 1.4, pp. 2-97], but since the Action can only be contained in
a Namespace (or in the context of a StateMachine, which is irrelevant here),
it cannot be contained in the Stimulus, nor in the Instances the Stimulus
connect, nor in the InteractionInstanceSet or CollaborationInstanceSet they
are part of. The "nearest" possible container is the Package that happens to
contain the CollaborationInstanceSet.

Intuitively, this makes no sense - used in this context, the Action is
clearly part of the InteractionInstanceSet, or the participating Instances
or Stimuli.

If this error report is rejected, please elaborate on the intended
containment structures for Collaboration instances.

Resolution: 
Revised Text: 
Actions taken:
December 5, 2001: received issue
March 9, 2005: closed issue
Discussion: 
Collaboration modeling in UML 2.0 is completely different in UML 2.0 (there are
no CollaborationInstanceSets), so this issue is no longer applicable.
End of Annotations:=====
From: Thomas Schaumburg <thomas.schaumburg@hiq.dk>
To: "'issues@omg.org'" <issues@omg.org>
Subject: UML 1.4: Action problem in Collaborations
Date: Wed, 5 Dec 2001 15:17:57 +0100 
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In UML 1.4, an Action is only used in the context of a StateMachine or
a
CollaborationInstanceSet.

In a CollaborationInstanceSet, an Action is required as the cause of a
Stimulus [UML 1.4, pp. 2-97], but since the Action can only be
contained in
a Namespace (or in the context of a StateMachine, which is irrelevant
here),
it cannot be contained in the Stimulus, nor in the Instances the
Stimulus
connect, nor in the InteractionInstanceSet or CollaborationInstanceSet
they
are part of. The "nearest" possible container is the Package that
happens to
contain the CollaborationInstanceSet.

Intuitively, this makes no sense - used in this context, the Action is
clearly part of the InteractionInstanceSet, or the participating
Instances
or Stimuli.

If this error report is rejected, please elaborate on the intended
containment structures for Collaboration instances.

          Brgds
                      Thomas Schaumburg