Re: One-To-One Relationships
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Sun, 02 Dec 2007 11:15:07 -0400
Message-ID: <4752cbff$0$5277$9a566e8b_at_news.aliant.net>
>
> Actually the problem is with OO is the same as with the RM, but at the
> other side of the spectrum. In OO the notion of entity is assumed to
> be central, in RM the notion of relationship is. Both are wrong.
Date: Sun, 02 Dec 2007 11:15:07 -0400
Message-ID: <4752cbff$0$5277$9a566e8b_at_news.aliant.net>
Jan Hidders wrote:
> On 1 dec, 01:13, JOG <j..._at_cs.nott.ac.uk> wrote:
>
>>On Nov 30, 9:36 pm, Jan Hidders <hidd..._at_gmail.com> wrote:
[snip]
>>>If the distinction is not useful and in >>>fact bad for data modeling then this should somehow become apparent >>>when you start working with such data models. >> >>But it is very apparent Jan. A testament to that are the hundreds of >>students I have encountered who end up very confused at the logical >>layer because of it (and their pre-indoctrination in OO), dropping the >>subject area as a result.
>
> Actually the problem is with OO is the same as with the RM, but at the
> other side of the spectrum. In OO the notion of entity is assumed to
> be central, in RM the notion of relationship is. Both are wrong.
[snip] Received on Sun Dec 02 2007 - 16:15:07 CET