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CS263 Lec. 4: Enhanced E-R Models

CS263 Lec. 4: Enhanced E-R Models. Basic ER model introduced in the mid 1970s Since then business relationships and business data have become more complex Enhanced Entity Relationship (EER) model refers to the extension of the original ER model

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CHAPTER 4 Enhanced Entity-Relationship (EER) Modeling

CHAPTER 4 Enhanced Entity-Relationship (EER) Modeling. Chapter Outline. EER stands for Enhanced ER or Extended ER EER Model Concepts Includes all modeling concepts of basic ER Additional concepts: subclasses/superclasses specialization/generalization categories (UNION types)

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CS263 Lec. 4: Enhanced E-R Models

CHAPTER 4 Enhanced Entity-Relationship (EER) Modeling