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EER Model Chapter 8.1-8.3

Why EER? -- Enhanced Entity Relationship . There are limitations to the ER modelER model enhanced (EER) to include:

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EER Model Chapter 8.1-8.3

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    1. EER Model Chapter 8.1-8.3

    2. Why EER? -- Enhanced Entity Relationship There are limitations to the ER model ER model enhanced (EER) to include: superclass/subclass relationships type inheritance specialization and generalization constraints

    3. Subclasses Subclass of an entity type relationship is-a derive subclass from superclass manager is a(n) employee subset symbol in connecting line member of a subclass must also be a member of some superclass

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