Re: Entity vs. Table

"Laconic2" <laconic2_at_comcast.net> wrote in message news:Ie6dneGf_Y518VXdRVn-uA_at_comcast.com...
>
> "Alan" <alan_at_erols.com> wrote in message
> news:2ir6udFphm1rU1_at_uni-berlin.de...
>
> > There are definite rules to convert an ERD (your logical design) into
> tables
> > (the physical implementation) to achieve 3NF, but you obviously don't
know
> > about them.
>
> Just a quibble about terminology (sigh).
>
> I don't think of ERD as "logical design". I think of ERD as part of
> "analysis", and the resulting model to be a "conceptual model" or an
> "analysis model", but not a design.

Yes, that is a more correct description, especially "conceptual model".

>
> Having said that, I strongly endorse ER as a useful early step in the
> process of understanding the data.
>
>

Now, if we can only get employers to understand that... Received on Thu Jun 10 2004 - 18:41:54 CEST