ERD Exam Review Questions and
Answers4
Completeness constraint - ANSWERS -Addresses the question of whether an instance of a
supertype must also be a member of at least one subtype
Generalization - ANSWERS -The process of defining a more general entity type from a set of
more specialized entity types
Planning, Analysis, Design, Implementation - ANSWERS -List the Systems Development Life Cycle
Conceptual Data Model - ANSWERS -Describes the business in terms of "things" it deals with
1. Interviews
2. Other discovery methods
3. Document & Prioritize Requirements - ANSWERS -3 Data Requirements for Discovery
Entity-Relationship Diagram - ANSWERS -What does ERD stand for?
People, events, objects, assets, things - ANSWERS -Examples of Entities
Attributes - ANSWERS -The data you are interested in capturing about the entity.
Unary, Binary, Ternary - ANSWERS -The 3 Relationships Types
Answers4
Completeness constraint - ANSWERS -Addresses the question of whether an instance of a
supertype must also be a member of at least one subtype
Generalization - ANSWERS -The process of defining a more general entity type from a set of
more specialized entity types
Planning, Analysis, Design, Implementation - ANSWERS -List the Systems Development Life Cycle
Conceptual Data Model - ANSWERS -Describes the business in terms of "things" it deals with
1. Interviews
2. Other discovery methods
3. Document & Prioritize Requirements - ANSWERS -3 Data Requirements for Discovery
Entity-Relationship Diagram - ANSWERS -What does ERD stand for?
People, events, objects, assets, things - ANSWERS -Examples of Entities
Attributes - ANSWERS -The data you are interested in capturing about the entity.
Unary, Binary, Ternary - ANSWERS -The 3 Relationships Types
