Re: what exactly is the conceptual model?
From: Roy Hann <specially_at_processed.almost.meat>
Date: Mon, 2 Jul 2007 22:59:14 +0100
Message-ID: <xK6dnd7ANpup6BTbnZ2dnUVZ8vidnZ2d_at_pipex.net>
Date: Mon, 2 Jul 2007 22:59:14 +0100
Message-ID: <xK6dnd7ANpup6BTbnZ2dnUVZ8vidnZ2d_at_pipex.net>
"Senges" <csengstock_at_gmail.com> wrote in message
news:1183410491.409439.296070_at_57g2000hsv.googlegroups.com...
> hi list,
>
> i know about the basic distiction of data modelling as i heard it in
> my db couse:
>
> * semantic model --> ERM
> * logical model --> relational schema / XML schema
> * physical model --> hash tables / how to handle stuff on the
> harddisk
> and i heard about the conceptual modell / conceptual schema /
> conceptual modelling. however: