Re: Another view on analysis and ER

On 5 dec, 13:52, JOG <j..._at_cs.nott.ac.uk> wrote:
> On Dec 5, 10:49 am, Jan Hidders <hidd..._at_gmail.com> wrote:
>
>
>
> > On 5 dec, 02:10, JOG <j..._at_cs.nott.ac.uk> wrote:
>
> > > So why on earth would /anyone/ want to drop step 3? I'm at a loss as
> > > to why certain cdt'ers (who are clearly intelligent people) seem to be
> > > advocating this. An absolute loss I tell you.
>
> > I'm not sure that is what Ruud is saying. Anyone else?
>
> Is this now what you were proposing yourself Jan in another thread -
> that the logical layer should not be neutral, but rather based on
> entities and relationships (and hence taking a specific conceptual
> viewpoint)?

Why would an ER schema be necessarily less neutral than a relational schema?

• Jan Hidders