The first attribute of a subtype object is the childID attribute.
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Q15: An object identifier is one or more
Q16: Object identifiers may or may not be
Q17: Semantic objects represent distinct identities.
Q18: The cardinalities of an attribute operate only
Q19: A "simple object" can contain only simple
Q21: A parent object is also known as
Q22: The relationship between a parent object and
Q23: Semantic objects are said to be _.
A)Semantically
Q24: A hybrid object is a semantic object
Q25: A compound object is a semantic object
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