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 A supertype/subtype hierarchy has which of the following features? Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype. Attributes are assigned at the highest logical level. Attributes are assigned at the lowest logical level. Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype. Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype. Attributes are assigned at the highest logical level. Attributes are assigned at the lowest logical level. Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype. 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
ER Model and Business Rules A supertype can only have only one subtype. False True False True 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 Which one of the following symbols is not used in an ERD? Circle Oval Rectangle Diamond Circle Oval Rectangle Diamond ANSWER DOWNLOAD EXAMIANS APP
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