Issue 4733: UML 1.4: Stimulus containment (uml2-superstructure-ftf)
Source:  (, )
Nature: Uncategorized Issue
Severity: 
Summary: According to the UML 1.4 standard, a Stimulus is a ModelElement representing
a communication between two instances [UML 1.4, pp. 2-106]. It is used
exclusively in the context of collaborations, as part of an
InteractionInstanceSet [UML 1.4, pp. 2-120].

Because Stimulus is a direct subclass of ModelElement - and because no other
composite containments are specified for Stimulus - it must be compositely
contained as an ownedElement in a ClassifierRole, Model. Package, Artifact
or Node (all other concrete subclasses of Namespace have restricted their
owned elements to exclude Stimulus).

Having the Stimulus be part of any of these classes makes no sense, as it is
intuitively part of the InteractionInstanceSet.

Proposed remedy: change the association between InteractionInstanceSet and
Stimulus [UML 1.4, pp. 2-120, diagram 2-20] to a mandatory composite
containment (with Stimulus as the part).

Alternatively, please clarify the intended semantics of each of the
currently allowed containments listed above

Resolution: 
Revised Text: 
Actions taken:
December 5, 2001: received issue
March 9, 2005: closed issue
Discussion: 
The metaclass Stimulus has been deleted.
Disposition: Closed, no change
End of Annotations:=====
From: Thomas Schaumburg <thomas.schaumburg@hiq.dk>
To: "'issues@omg.org'" <issues@omg.org>
Subject: UML 1.4: Stimulus containment
Date: Wed, 5 Dec 2001 15:40:21 +0100 
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According to the UML 1.4 standard, a Stimulus is a ModelElement
representing
a communication between two instances [UML 1.4, pp. 2-106]. It is used
exclusively in the context of collaborations, as part of an
InteractionInstanceSet [UML 1.4, pp. 2-120].

Because Stimulus is a direct subclass of ModelElement - and because no
other
composite containments are specified for Stimulus - it must be
compositely
contained as an ownedElement in a ClassifierRole, Model. Package,
Artifact
or Node (all other concrete subclasses of Namespace have restricted
their
owned elements to exclude Stimulus).

Having the Stimulus be part of any of these classes makes no sense, as
it is
intuitively part of the InteractionInstanceSet.

Proposed remedy: change the association between InteractionInstanceSet
and
Stimulus [UML 1.4, pp. 2-120, diagram 2-20] to a mandatory composite
containment (with Stimulus as the part).

Alternatively, please clarify the intended semantics of each of the
currently allowed containments listed above

          Brgds
                Thomas Schaumburg


Discussion:
The metaclass Stimulus has been deleted.
Disposition:	Closed, no change