ER Model and Business Rules Use of a supertype/subtype relationship is necessary when which of the following exists? Attributes apply to all of the instances of an entity type. An instance of a subtype participates in a relationship that is the same as the other subtypes. No attributes apply to any of the instances of an entity type. An instance of a subtype participates in a relationship that is unique to that subtype. Attributes apply to all of the instances of an entity type. An instance of a subtype participates in a relationship that is the same as the other subtypes. No attributes apply to any of the instances of an entity type. An instance of a subtype participates in a relationship that is unique to that subtype. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Which of the following is not one of the three ways to classify an action assertion? Authorization Enabler Integrity Control Condition Authorization Enabler Integrity Control Condition 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 An ERD that has had the entities clustered will display more entities. True False True False 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 An oval represents which of the following in an EER? Optional One Entity Relationship Attribute Optional One Entity Relationship Attribute ANSWER DOWNLOAD EXAMIANS APP
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