1. Semantic Model vs. Entity Relationship Model
The semantic model, though used less frequently, can be an extremely efficient way of modeling our business data. ... Semantic objects are similar to entities in the entity relationship model. ... Object classes contain instances of objects, just as entity classes contain instances of the entity. ... Both look at business needs, and translate those needs into things that need to be tracked. However, the real difference lies in how the models look on paper. ...
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