ER Model and Business Rules A supertype/subtype hierarchy is which of the following? Each subtype has only one attribute. Each supertype has only one subtype. Each supertype has only one attribute. Each subtype has only one supertype. Each subtype has only one attribute. Each supertype has only one subtype. Each supertype has only one attribute. Each subtype has only one supertype. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Which one of the following symbols is not used in an ERD? Oval Circle Diamond Rectangle Oval Circle Diamond Rectangle ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Generalization is the process of defining more general entity types from a set of more specialized entity types. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules An action assertion is a statement that expresses some aspect of the static structure of the organization. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following? Overlap with total specialization Overlap with partial specialization Disjoint with total specialization Disjoint with partial specialization Overlap with total specialization Overlap with partial specialization Disjoint with total specialization Disjoint with partial specialization ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Which of the following statements concerning business rules is true? All of these It should not be convertible to computer code. It may include restrictions. It should be complex. All of these It should not be convertible to computer code. It may include restrictions. It should be complex. ANSWER DOWNLOAD EXAMIANS APP
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