Re: Conceptual, Logical, and Physical views of data
- From: "x" <x@xxxxxxxxxxxxxx>
- Date: Tue, 30 Aug 2005 15:32:11 +0300
"David Cressey" <david.cressey@xxxxxxxxxxxxx> wrote in message
news:EdWQe.3994$_84.75@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> My introduction to databases, back in the 1980s, was, in part, by way of
> Martin. I got this description of multiple views of data: the
conceptual,
> logical, and physical views.
> The conceptual view of data: the data as seen by the subject matter
expert.
> The meaning of each of the values, in context, is part of the subject
matter
> expert's domain. Database structure is not the domain of the SME, in that
> role.
http://www.commentcamarche.net/bdd/bddansi.php3 (in French)
http://www.cybermed.jussieu.fr/Broussais/InforMed/LIVRES/TraitInfo/Fic/Chapitre4/Chap4.html
http://de.wikipedia.org/wiki/ANSI-SPARC-Architektur (in German)
www.dbmaker.com.tw/reference/ manuals/tutorial/tutorial_03.html (in
English)
www-db.stanford.edu/pub/gio/1980/losangeles.doc
www.research.ibm.com/journal/sj/163/ibmsj1603C.pdf (page 21)
.
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- From: David Cressey
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