Re: The wisdom of the object mentors (Was: Searching OO Associations with RDBMS Persistence Models)

David Cressey wrote:
> "Alfredo Novoa" <alfredo_novoa_at_hotmail.com> wrote in message
> news:1148940908.338233.159400_at_j73g2000cwa.googlegroups.com...
>

>>> No, a DBMS is a bucket of bits with some low level rules to manage
>>> those bits.  An OO application provides the beavior that the customer
>>> wants to see.  We can completely eliminate the DBMS and replace it with
>>> another of an entirely different form (non Relational for example) and
>>> still have all the business behavior we need.
>>> The people who sell databases have sold you, and the industry, a
>>> misconception: that the database is the heart of the system.  This is
>>> flawed.  The heart of the system is the application code.  The database
>>> is a detail to be decided at the last possible moment and kept in a
>>> position so flexible that it can be swapped out for another at a whim.

Wrong - the heart of the system is information, not data.

> For 20 years, I believed that the heart of the system was the application
> code. I wrote application code. That's why I believed it. But I've seen
> enough to convince me otherwise in the last 17 years.
>
> Not that I didn't say: "the database". What if we change database vendors?
> Been there, done that.
> What if we rewrite almost all the application code? Been there, done that.
>
> What if we destroy all the data up to this point? Time to update your
> resume, everybody!
>
>
Received on Tue May 30 2006 - 21:09:02 CEST