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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. This is also referred to as the data model.

Employing a data model permits the designer to present data visually. These models focus on representing the data in terms of a user’s viewpoint. During our discussion, let’s also consider not only the importance and advantages of data modeling but also do some web research regarding modeling tools.

Explain the value of utilizing the entity relationship model (ER Model) and the entity relationship diagram (ERD) for relational databases. Is this an advantage or disadvantage? Why?

....In other words why would anyone want to do data modeling?

What are the advantages of data modeling?

 

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