Re: what exactly is the conceptual model?

Senges wrote:

> 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:
>
> * sometimes the semantic modell is explaint to be a conceptual modell,
> or .. conceptualization leeds to a semantic modell.
> * sometimes the logical modell is explaint to be a coceptual one (this
> way we learned it in our course).
>
>
> Now i'm writing about ontologies defined as, "a specification of an
> explicit conceptualization".
> Would you think this "conceptualization" refers to the semantic oder
> the logical model?
>
> thanx for any help,
> chris

Hi Chris,

If you use conceptual model as a synonym for semantic model, I think you will translate your teachings into normal usage well enough. However, while ERM is certainly popular, I think better conceptual modelling methods exist. Received on Tue Jul 03 2007 - 00:24:25 CEST