Re: Date of Birth as an attribute

From: Alan <>
Date: Wed, 7 Apr 2004 09:49:52 -0400
Message-ID: <c510tr$2o2ihj$>

It is always entirely subject matter dependent at the logical level (ERD). It only has the opportunity to become otherwise during the conversion from the logical to the physical.

"Laconic2" <> wrote in message
> It strikes me that the connection between attributes and entities (or
> relationships) is more subject matter dependent than a lot of us like to
> admit.
> For example, "date of birth" is an attribute of a person in a personnel
> system.
> But it's an attribute of a birth, in a birthing center.
> Your thoughts?
Received on Wed Apr 07 2004 - 15:49:52 CEST

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