Improved E-R Model and Business Rules

2976 days ago, 1059 views

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Presentation. The fundamental ER model was presented in the mid 1970sSince then business connections and business information have turned out to be more complexThe term Enhanced Entity Relationship (EER) model alludes to the expansion of the first ER model. Supertype/Subtype connections. Most critical new demonstrating build in the EER modelAllows us to show a general element sort (the supertype) and after that subdiv

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