Re: Conceptual, Logical, and Physical views of data
Date: Tue, 30 Aug 2005 15:32:11 +0300
Message-ID: <df1jkd$8ha$1_at_domitilla.aioe.org>
"David Cressey" <david.cressey_at_earthlink.net> wrote in message
news:EdWQe.3994$_84.75_at_newsread1.news.atl.earthlink.net...
> 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)
Received on Tue Aug 30 2005 - 14:32:11 CEST