[Database class] ER vs. Schema diagrams

Paul S. Wang pwang at cs.kent.edu
Mon Feb 6 11:00:56 EST 2012


Stephen and DB class,

Complete schema diagram is of course more precise and detailed than
ER diagrams which are tools to help create the schemas.

Paul

> 
> Professor,
> 
> My name is Stephen Spadafora and am currently enrolled in your Introduction
> to Database Design (CS 430005) class. I spoke to you earlier
> and appreciated your timely feedback to my question. However, I have one
> more question regarding the first milestone of our database project. In
> Chapter 7 the book it say, "For small applications, it may be feasible for
> a designer who understands the application requirements to decide directly
> on the relations to  be created (pg. 259)". Would it be acceptable just
> include a complete schema diagram in our reports instead of the an ER
> Diagram? Sorry for troubling you and thanks in advance for your feedback.
> 
> Sincerely,
> -Stephen Spadafora

-- 
==============================================================================
 Paul S. Wang (王士弘)                      Email: pwang at cs.kent.edu            
 Dept. of Computer Science, Kent State U.   Tel: (330) 672-9051
 Kent, Ohio, USA 44242-0001                 http://www.cs.kent.edu/~pwang/ 
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