When an entity instance must be a member of only one subtype, it is which of the following? Disjoint with total specialization Overlap with partial specialization Overlap with total specialization Disjoint with partial specialization TRUE ANSWER : ? YOUR ANSWER : ?
There is cardinality on an EER between the supertype and subtype. True False TRUE ANSWER : ? YOUR ANSWER : ?
A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings. 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? It may include restrictions. It should be complex. All of these It should not be convertible to computer code. TRUE ANSWER : ? YOUR ANSWER : ?
An ERD that has had the entities clustered will display more entities. False True TRUE ANSWER : ? YOUR ANSWER : ?
Packaged data models are meant to be exactly right straight out of the box. True False TRUE ANSWER : ? YOUR ANSWER : ?
Generalization is the process of defining more general entity types from a set of more specialized entity types. True False TRUE ANSWER : ? YOUR ANSWER : ?
An oval represents which of the following in an EER? Relationship Entity Optional One Attribute TRUE ANSWER : ? YOUR ANSWER : ?
Action assertions have traditionally been implemented within an application program. True False TRUE ANSWER : ? YOUR ANSWER : ?