Describe a situation where the E-R diagram would be inappropriate and there would be a need to use an Extended E-R model
Use the Internet to locate an example of an E-R diagram. Take note of how the diagram helps us understand the relationships among entities in the example. Be prepared to discuss.
Discussion 2…125 words
Extended E-R Model” Please respond to the following:
Describe a situation where the E-R diagram would be inappropriate and there would be a need to use an Extended E-R model over the standard E-R diagram.
From the e-Activity, describe in your own words how the E-R diagram helps us understand the relationships among entities for the example you selected. Outline the essential relationships of the E-R diagram you selected
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A standard E-R model is inappropriate in a situation where the extensions need to be made to the original ER diagram. The E-R diagram is not appropriate in portraying the complex relationships that exist between entities since it does not show relationship constraints (Jackson, Nelson & BNCOD, 2005)…………………………….
APA
279 words
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