Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied. True False TRUE ANSWER : ? YOUR ANSWER : ?
Packaged data models are meant to be exactly right straight out of the box. False True TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not one of the three ways to classify an action assertion? Integrity Control Enabler Authorization Condition TRUE ANSWER : ? YOUR ANSWER : ?
Use of a supertype/subtype relationship is necessary when which of the following exists? 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. TRUE ANSWER : ? YOUR ANSWER : ?
An action assertion is a statement that expresses some aspect of the static structure of the organization. False True TRUE ANSWER : ? YOUR ANSWER : ?
An entity instance of a subtype represents the same entity instance of a supertype. True False TRUE ANSWER : ? YOUR ANSWER : ?
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. TRUE ANSWER : ? YOUR ANSWER : ?
An ERD that has had the entities clustered will display more entities. False True TRUE ANSWER : ? YOUR ANSWER : ?
Total specialization is represented by double lines between the supertype and subtype on an EER. True False TRUE ANSWER : ? YOUR ANSWER : ?
A subtype discriminator is which of the following? An attribute of the supertype whose values determine the subtype 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 supertype TRUE ANSWER : ? YOUR ANSWER : ?