Entity Relationship Diagrams
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MERLOT II




        

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Entity Relationship Diagrams

        

Entity Relationship Diagrams

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A good web site has good graphics and links to other related web sites.
Material Type: Reference Material
Date Added to MERLOT: September 27, 2002
Date Modified in MERLOT: August 16, 2011
Author:
Submitter: Robinson

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Primary Audience: College General Ed
Mobile Compatibility: Not specified at this time
Language: English
Cost Involved: no
Source Code Available: no
Accessiblity Information Available: no
Creative Commons: unsure

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Avatar for Vicki Webster
6 years ago

Vicki Webster (Faculty)

Since there is not a diagram for a hospital, it may have been better not to include that explanation. The definitions aren't very clear. For instance, the author mentions business rules, which is great. But, doesn't truly tie an example to the diagram. Lack of discussion on cardinalities is a problem. I wouldn't use it as a teaching tool, unless it was to give students the opportunity to complete it.

Avatar for   Robinson
12 years ago

Robinson (Student)

this is a good web site and it has good graphics showing you how to make
diagrams and has other good links.