It means that the supertype is associated with Class A. Subtypes X1 and X2 will inherit this relation.
********************************************************
R a t i o n a l
the software development company(tm)
Todd Dunnavant
Technical Lead, IBM End User Programs
Office Phone #: (281) 431-8751
Fax Phone #: (281) 431-8791
E-mail address: [EMAIL PROTECTED] < mailto:[EMAIL PROTECTED]>
Rational's Mission: "To ensure the success of Customers who
depend on software development and deployment."
********************************************************
-----Original Message-----
From: Eric D. Tarkington [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 08, 2003 1:08 PM
To: Les Munday
Cc: Dunnavant, Todd; Frank Yang; E-mail
Subject: Re: (ROSE) How is Xor-association represented in Rose?
Les Munday wrote:
>
> What does it mean when I place an association from a Class A to
> a supertype X with subtypes X1 and X2?
>
> Does it mean that A <-> X1 XOR A<-> X2 ?
>
> If so, is this not a better notation?
>
> Les.
Clever, Les, but I think it means that the supertype is instantiated.
Association is a relationship between objects, hence the instantiation.
-Eric
