[Fwd: [Modeling] Comments on interaction diagram modeling doc]

[Renato Levy]

I second Nodine, IF roles are correctly defined then one should be able to 
describe a protocol in a open system based only on role playing.

At 10:26 AM 3/19/2003 -0600, you wrote:
>Whoops, I meant to send this to the entire list. Attached is my response
>to Gerd.
>
>-- Misty
>
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>From: Marian Nodine <nodine@research.telcordia.com>
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>Subject: Re: [Modeling] Comments on interaction diagram modeling doc
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>"Wagner, G.R." wrote:
>
> > > The UML 2.0 format is effectively <agentName:agentRole>, where you can
> >
> > Why not keep the format <agentName:agentRole/agentType>?
> > This would allow to express Lin's problem of modeling
> > the interaction for shop assistants by using lifelines
> > associated with agentrole/agenttype combinations, like
> > <:customerWelcoming:shopAssistant>.
> >
> > -Gerd
> >
> > ---------------------------------------
> > Gerd Wagner
> > http://tmitwww.tm.tue.nl/staff/gwagner/
> > Dep. Information & Technology
> > Eindhoven University of Technology
> > Email: G.Wagner@tm.tue.nl
> > Phone: (+31 40) 247 26 17
> > Fax: (+31 40) 247 26 12
> >
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>
>Where Lin started out (as I understood it) was with the comment that agent
>interaction protocols more intuitively map to interactions between roles as
>opposed to interactions between agents. This is related directly to the
>late binding issues of agents, I think. AUML is most challenged in the
>areas where agents have little resemblance to objects, as that is where the
>distinctions between AUML and UML2 will be the clearest.
>
>I do not really see the point in putting a specific named agent into the
>lifeline header, as this defeats the late binding approach. Perhaps we
>could represent the name with respect to the instantiation of the role, in
>the tab in the upper left-hand corner of the UML frame?
>
>I do see what Lin says with respect to roles possibly being specified in
>the context of an agent type.  However, this should not be true in an open
>agent system -- due again to the dynamic nature of such systems and the
>late binding issues, no agent types are necessarily known. It seems to me
>that someone should  come up with a good and concise definition of "role"
>that we can all agree on, and then discuss how to set it into the context
>of AUML interactions.
>
>-- Misty
>
>



Renato Levy
Principal Scientist
Intelligent Automation, Inc.
7519 Standish Place, ste 200
Rockville, MD 20855
phone: (301)294-5241
fax: (301)294-5201
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