ER Model and Business Rules Packaged data models are meant to be exactly right straight out of the box. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Total specialization is represented by double lines between the supertype and subtype on an EER. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules When an entity instance must be a member of only one subtype, it is which of the following? Overlap with total specialization Disjoint with total specialization Overlap with partial specialization Disjoint with partial specialization Overlap with total specialization Disjoint with total specialization Overlap with partial specialization Disjoint with partial specialization ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype/subtype hierarchy has which of the following features? Attributes are assigned at the lowest logical level. Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype. Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype. Attributes are assigned at the highest logical level. Attributes are assigned at the lowest logical level. Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype. Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype. Attributes are assigned at the highest logical level. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Action assertions have traditionally been implemented within an application program. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules An entity instance of a subtype represents the same entity instance of a supertype. True False True False ANSWER DOWNLOAD EXAMIANS APP
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