Re: Peter Chen and Charles Bachman

From: Leandro Guimarães Faria Corsetti Dutra <leandro_at_dutra.fastmail.fm>
Date: Wed, 05 May 2004 20:08:13 -0300
Message-ID: <pan.2004.05.05.23.08.13.556059@dutra.fastmail.fm>

Em Wed, 05 May 2004 17:29:50 -0500, Dawn M. Wolthuis escreveu:

>> Useless talk, since none of these gives you a data model as the RM does.

>
> If models are metaphors, can't a diagram provide such a metaphor?

A database isn't a simple metaphor. It is a representation of a database.

Speaking about metaphors will only confuse things now.

>> Hey, go back to your textbooks.  Relationships aren't defined in the RM.

>
> Well, the definition is often there, but it is incorrectly mapped to the
> word "relation" instead. It is a relationship (in mathematics) that is
> unordered, as someone else recently pointed out in the glossary
> discussions.

Hm, I see you don't want to learn, only to win the discussion... I won't play this game.

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Received on Wed May 05 2004 - 18:08:13 CDT