ER Model and Business Rules An entity cluster is a set of one or more entity types and associated relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Action assertions have traditionally been implemented within an application program. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A subtype discriminator is which of the following? An attribute of the subtype whose values determine the subtype An attribute of the subtype whose values determine the supertype An attribute of the supertype whose values determine the subtype An attribute of the supertype whose values determine the supertype An attribute of the subtype whose values determine the subtype An attribute of the subtype whose values determine the supertype An attribute of the supertype whose values determine the subtype An attribute of the supertype whose values determine the supertype ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Specialization is which of the following processes? Defining one or more subtypes of the supertype and forming supertype/subtype relationships. Defining one or more supertypes of the subtype and not forming supertype/subtype relationships. Defining one or more subtypes of the supertype and not forming supertype/subtype relationships. Defining one or more supertypes of the subtype and forming supertype/subtype relationships. Defining one or more subtypes of the supertype and forming supertype/subtype relationships. Defining one or more supertypes of the subtype and not forming supertype/subtype relationships. Defining one or more subtypes of the supertype and not forming supertype/subtype relationships. Defining one or more supertypes of the subtype and forming supertype/subtype relationships. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type. True False True False 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? Disjoint with partial specialization Overlap with partial specialization Overlap with total specialization Disjoint with total specialization Disjoint with partial specialization Overlap with partial specialization Overlap with total specialization Disjoint with total specialization ANSWER DOWNLOAD EXAMIANS APP
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