Re: Has E/R had a negative impact on db?

From: SD <sd_at_noemailspam.com>
Date: Thu, 20 Apr 2006 09:22:52 -0500
Message-ID: <BMM1g.3$Wx4.3102_at_news.uswest.net>

On 4/20/2006 9:12 AM, Jon Heggland wrote:

> JOG wrote:

>> I don't like entities. In fact I despise entities, as the enemy of good
>> information philosophy. [...]
>>
>> Okay, so for those in the know this isn't an issue and E/R is a useful
>> tool. But for those not in the know (which appears to be a lot of the
>> industry) it promotes the fallacy of the Entity/Relationship
>> distinction, of impenetrable wrappers, and encourages the mindset that
>> has lead to OODBMS, XML databases, etc.

> 
> Agreed. ORM is much better in this regard. It was a major revelation to
> me to think in terms of *facts* instead of entities.

E/R is too close to the logical model (in RDBMS) to richly describe and discover the problem domain. Does a business analyst understand E/R? ORM was a revelation to me, but sadly it appears to be dying because tech heads like to think they are god and keep "knowledge" to themselves.

SD Received on Thu Apr 20 2006 - 16:22:52 CEST