Re: many to many relationship

"Paul Vernon" <paul.vernon_at_ukk.ibmm.comm> wrote in news:b478s6$1h5m$2 @sp15at20.hursley.ibm.com:

> All of which is an argument against the usefulness of the ER model's
> many-to-many relationships idea. In this case, was the ER model
> clearer without an explicit 'enrollement' entity?

FWIW, I always go directly to the physical model. After all, the folks who typically consume the model are developers. The businessness folks do the 'sign-off' and they're easily 'trained' to read the physical model. :)

-- 
Pablo Sanchez, High-Performance Database Engineering
http://www.hpdbe.com