please dont write to me
----- Original Message -----
From: Crain, Anthony R. <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, February 08, 2001 3:49 PM
Subject: RE: (ROSE) Question About Actors
>
> I did some training to Daimler Chrysler within the last eight weeks. Fun
> bunch. I did not actually miss the point you refer to. Use cases and
> actors are defined for a given scope.
>
> If your scope is the super system, the actors are the people or things I
> interact with at the super system level. The subsystems would not even
> appear until I got into the DESIGN of the super system. That design would
> be done via sequence diagrams (in my house).
>
> Once I was ready to develop the subsystems, the scope would change. I
would
> do the use cases of my subsystem. Now the actors could either be the same
> as those for my super system if my subsystem was responsible for working
> with that actor, and other actors would be the other subsystems.
>
> I do not model any relationship between the two different scopes. well
> actually I do, but not in a use case diagram.
>
> So for a given scope, actors external, use cases internal. Change your
> scope, things change, but actors are still outside, and use cases are
still
> inside.
>
> --anthony
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, February 08, 2001 6:52 AM
> > To: Crain, Anthony R.; [EMAIL PROTECTED]
> > Subject: RE: (ROSE) Question About Actors
> >
> >
> >
> >
> > Anthony,
> >
> > You missed one small point that is crucial in a large distributed
> > development system. The concept of scope, a large system that
> > is made up of
> > loosely connected autonomous subsystems which send and
> > receive data between
> > them only as required to perform a function of their own system.
> >
> > The system supplying the data is an actor to the system requesting the
> > data. It is external, developed separately, with different purpose.
> >
> > To the overall system, which ties all the subsystems
> > together, it is part
> > of the process being developed. So, to the team developing
> > application A,
> > the control system is merely an actor. To the team developing
> > application
> > B, the control system is merely an actor. To the team
> > integrating the whole
> > damn lot together A,B and the control system are just
> > components. Note, B
> > and A are not actors of each other as they do not interface directly.
> >
> > The situation becomes even more complicated when trying to include
> > "knowledge" in the control system as this then does not only
> > respond to
> > prompt from the subsystems via their actors but can also
> > instigate actions
> > on the subsystems.
> >
> > In conclusion, do what figure out what fits well with your
> > projects needs,
> > agree it with your team and get on with it. If it doesn't
> > fit, don't use
> > it.
> >
> > Mark
> >
> >
> >
> >
> >
> > "Crain, Anthony R." <[EMAIL PROTECTED]>@rational.com on 02/07/2001
> > 06:39:02 PM
> >
> > Please respond to "Crain, Anthony R." <[EMAIL PROTECTED]>
> >
> > Sent by: [EMAIL PROTECTED]
> >
> >
> > To: Colin Gourlay <[EMAIL PROTECTED]>, "'Pankaj
> > Chatterjee'"<[EMAIL PROTECTED]>, "Rational
> > Rose Forum
> > (E-mail)"<[EMAIL PROTECTED]>
> > cc:
> >
> > Subject: RE: (ROSE) Question About Actors
> >
> >
> >
> > Actors are outside the system. The whole purpose of
> > identifying actors is
> > to show the boundary of what is in the system and what is
> > outside of the
> > system.
> >
> > The "of value" part of your explanation is good though. And
> > it does not
> > conflict with the idea that actors are external.
> >
> > Stakeholders in RUP are anyone who would be materially
> > affected by the
> > system if it were built correctly. But not all stakeholders
> > are actors.
> > The difference? Some stakeholders interact with the system,
> > others do
> > not. The ones that do are actors, the ones that do not are not. The
> > actor name may match up with the stakeholder name, but often do not.
> >
> > Jane runs a university, and if we build a registration system, she is
> > materially affected, thus is a stakeholder. However, there may be no
> > requirements that the system directly help her run the university, so
> > there would be no use cases for her. Thus she would not be an actor
> > **************************************************************
> > **********
> > * Rose Forum is a public venue for ideas and discussions.
> > * For technical support, visit http://www.rational.com/support
> > *
> > * Admin.Subscription Requests: [EMAIL PROTECTED]
> > * Archive of messages:
> > http://www.rational.com/products/rose/usergroups/rose_forum.jtmpl
> > * Other Requests: [EMAIL PROTECTED]
> > *
> > * To unsubscribe from the list, please send email
> > *
> > * To: [EMAIL PROTECTED]
> > * Subject:<BLANK>
> > * Body: unsubscribe rose_forum
> > *
> > **************************************************************
> > ***********
> >
> ************************************************************************
> * Rose Forum is a public venue for ideas and discussions.
> * For technical support, visit http://www.rational.com/support
> *
> * Admin.Subscription Requests: [EMAIL PROTECTED]
> * Archive of messages:
http://www.rational.com/products/rose/usergroups/rose_forum.jtmpl
> * Other Requests: [EMAIL PROTECTED]
> *
> * To unsubscribe from the list, please send email
> *
> * To: [EMAIL PROTECTED]
> * Subject:<BLANK>
> * Body: unsubscribe rose_forum
> *
> *************************************************************************
>
************************************************************************
* Rose Forum is a public venue for ideas and discussions.
* For technical support, visit http://www.rational.com/support
*
* Admin.Subscription Requests: [EMAIL PROTECTED]
* Archive of messages:
http://www.rational.com/products/rose/usergroups/rose_forum.jtmpl
* Other Requests: [EMAIL PROTECTED]
*
* To unsubscribe from the list, please send email
*
* To: [EMAIL PROTECTED]
* Subject:<BLANK>
* Body: unsubscribe rose_forum
*
*************************************************************************
