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1) (10 pts) Explain the concepts of Aggregation, Specialization and Generalization. Now answer the following question: Can E-R diagrams be modelled without the help of

1) (10 pts) Explain the concepts of Aggregation, Specialization and Generalization. Now answer the following question: Can E-R diagrams be modelled without the help of Aggregation, Specialization, and Generalization? Justify your

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