One of the major challenges in data modeling is to recognize and clearly represent entities that are almost the same.
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Q47: The overlap rule specifies that if an
Q48: When the total specialization rule is set
Q49: Generalization is a top-down process.
Q50: A member of a subtype does NOT
Q51: When identifying the parts of the packaged
Q53: An entity instance of a subtype represents
Q54: A completeness constraint may specify that each
Q55: The total specialization rule states that an
Q56: The most important challenge of customizing a
Q57: In packaged data models, strong entities always
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