Re: database design method
From: Leandro Guimarães Faria Corsetti Dutra <lgcdutra_at_terra.com.br>
Date: Fri, 08 Nov 2002 12:22:32 +0100
Message-ID: <aqg6pp$9nj79$1_at_ID-148886.news.dfncis.de>
>
> Fabian Pascal's samples seems to suggest that the data is also a part
> of the logical model, but not a part of the conceptual model.
>
> http://www.dbazine.com/pascal1.html
Date: Fri, 08 Nov 2002 12:22:32 +0100
Message-ID: <aqg6pp$9nj79$1_at_ID-148886.news.dfncis.de>
Alfredo Novoa wrote:
> On Sun, 3 Nov 2002 20:10:01 -0500, "Bob Badour" wrote:
>
>> 2. The conceptual model captures an information model and need not >> represent >> anything for machine consumption. In other words, it captures the >> concepts used by human beings. >> >> 3. The logical model represents some or all of a conceptual model >> in an abstract form suitable for machine manipulation.
>
> Fabian Pascal's samples seems to suggest that the data is also a part
> of the logical model, but not a part of the conceptual model.
>
> http://www.dbazine.com/pascal1.html
I think they are only that, samples. The data is there for illustrative purposes only.
AFAIU you could say that metadata is data, but that would be stretching it.
-- _ / \ Leandro Guimarães Faria Corsetti Dutra +41 (21) 216 15 93 \ / http://homepage.mac.com./leandrod/ fax +41 (21) 216 19 04 X http://tutoriald.sourceforge.net./ Orange Communications CH / \ Campanha fita ASCII, contra correio HTML +41 (21) 644 23 01Received on Fri Nov 08 2002 - 12:22:32 CET