[Modeling] Modeling an Agent Class- register your opinion

Hossam Allam hallam@cedare.org.eg
Sat, 14 Jun 2003 02:05:36 +0300


Dear Mr. Odell

Thank you for your email, Would it be feasible to add Boolean property to 
Class "isAgent"?. SO UML CLass instances would describe Passive objects, 
Active objects, or Agents.

Regards

Hossam Allam

At 01:48  14/06/2003, James Odell wrote:
>Hossam,
>
>Thank you for the clarification.
>
>Just a quick note: Passive Class and Active Class are not UML classes, per
>se.  Class has a Boolean property of isActive which identifies whether or
>not its objects are active.  So, in reality, we only have AgentClass.
>
>Does that make sense?
>
>Cheers,
>Jim
>
>
>On 6/13/03 5:44 PM, "Hossam Allam" indited:
>
> > Dear Mr. Odell
> >
> > At 03:08  13/06/2003, you wrote:
> >> On 6/12/03 7:56 PM, "Hossam Allam" indited:
> >>
> >>> I would go to the option of having Class as the supertype of Agent Class.
> >>> The definition of  Class will need to be changed to "A Class is a
> >>> description of a set of Objects and Agents that share ............". AUML
> >>> will have passive class, active class, and agent class.
> >>
> >> So, if I understand you correctly: you would
> >>
> >> 1) extend the feature of Class at they are now defined in UML to include
> >> additional features.
> >> 2) create three new subclasses of the newly extended Class called: passive
> >> class, active class, and agent class.
> >>
> >
> > Passive Class and Active Class are already UML classes; Agent class is the
> > new extension to UML Class. I believe this will make it easier for  people
> > that are using UML for object-oriented systems to merge to systems that
> > contains agents and objects. I believe that current and new software
> > systems will contain both objects and agents.
> >
> >
> >> Is that correct?  That is an interesting proposition, as well.   What
> >> features would each of these three new subclasses have that would
> >> differentiate themselves from each other?
> >
> > Instances of Passive class are passive objects that holds data, but does
> > not initiate control (as described by UML)
> >
> > Instances of Active Class are active objects that owns a thread of Control
> > and may initiate control activity (as described by UML).
> >
> > Instances of Agent Class are agents that have all the agency features that
> > differentiate agent from object such as the ability to refuse requests from
> > other active objects, agents, or users.
> >
> >
> > Thanks
> >
> > Regards
> >
> > Hossam Allam
> >
> >
> >> Thanks.
> >>
> >>
> >> Cheers,
> >>
> >> Jim
> >>
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> >
>
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