COMPUTER SCIENCE AND ENGINEERING
DATABASE MANAGEMENT SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Aggregation
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Generalization
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Specialization
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All of the above
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Detailed explanation-1: -Specialization is a top-down approach in which a higher-level entity is divided into multiple specialized lower-level entities.
Detailed explanation-2: -Generalization works in Bottom-Up approach. Specialization works in top-down approach.
Detailed explanation-3: -➢ Generalization is a bottom-up approach in which two lower level entities combine to form a higher levels entity.
Detailed explanation-4: -Structure: Generalization is a bottom-up approach in that it begins with lower-level, or narrower, entity types and broadens them to higher-level types. Specialization, in contrast, is a top-down approach since it creates lower-level entity types out of higher-level ones.
Detailed explanation-5: -The generalization process extracts the most common features of various entities and leads to the formation of a new entity. The specialization process takes up an entity and splits it to form various new entities-each of which inherits some of the features of the splitting entity.