Re: Academic ERDs vs. Professional ERDs

From: Tim Gorman <tim_at_sagelogix.com>
Date: Sat, 07 Feb 2004 12:55:07 -0700
Message-ID: <BC4A90AB.FDB4%tim@sagelogix.com>

If it is not used outside of academia, then it is either ahead of its time (due for general adoption) or of absolutely no practical use whatsoever.

Given that decision-tree, how long have these concepts been around? I'm sure the footnotes have dates... :-)

on 2/7/04 9:47 AM, Ryan at ryan.gaffuri_at_cox.net wrote:

> I'm taking academic database classes and last semester we covered academic
> ERDs. The material in the book discussed 'entity sets' and relationship sets.
> The relations between them seemed very similiar to relations in a class
> diagram.
> However, I when I look into Erwin and Designer the ERDs there seem to be
> closer to table models. Does anyone use the academic type of ERDs
> professionally?
>
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Received on Sat Feb 07 2004 - 13:55:07 CST