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RE: isa and hasa in UML

From: Cutler, Roger (RogerCutler) <RogerCutler@chevrontexaco.com>
Date: Fri, 30 May 2003 16:37:51 -0500
Message-ID: <7FCB5A9F010AAE419A79A54B44F3718E026EF77B@bocnte2k3.boc.chevrontexaco.net>
To: "Francis McCabe" <fgm@fla.fujitsu.com>
cc: "Martin Chapman" <martin.chapman@oracle.com>, www-ws-arch@w3.org

Swell.  So, why are you keeping me in suspense?  What does aggregation

So far, as far as I can tell (and God knows I could easily be wrong), I
don't see any difference between your is-a and the UML is-a -- except
that I find yours a lot easier to understand.  But it was has-a where I
was told specifically that there was a difference, so let's see what
that difference is.

Once we get these definitions sorted out I think that the WG needs to
choose between the alternatives.  This is not, IMHO, a no-brainer.

-----Original Message-----
From: Francis McCabe [mailto:fgm@fla.fujitsu.com] 
Sent: Friday, May 30, 2003 4:28 PM
To: Cutler, Roger (RogerCutler)
Cc: Martin Chapman; www-ws-arch@w3.org
Subject: Re: isa and hasa in UML

   The UML definition of generalization is:

>>>> Generalization is the taxonomic relationship between a more general

>>>> element and a more specific element that is fully consistent and 
>>>> that adds additional information.

Received on Friday, 30 May 2003 17:40:04 UTC

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