Re: One-To-One Relationships
Date: Fri, 30 Nov 2007 19:05:20 GMT
David Cressey wrote:
> Note that "attributes, values, and domains" are common elements to the ER
> model and to the relational model. They provide a brdige from one kind of
> modeling to the other.
Of course people in different camps of any field will sometimes adopt the other side's lingo and call it their own, it's rampant among nations today. But attributes, values and domains aren't logical RM terms because they are "logical" nor because "they can be seen to exist" nor because they offer a bridge to some other theory but because they are necessary to define that model's operation. Received on Fri Nov 30 2007 - 20:05:20 CET