Multiple Choice
During systems planning and selection:
A) a conceptual data model (E-R with attributes) is prepared.
B) a logical model (relational) is prepared.
C) physical files and database designs are prepared.
D) an enterprise-wide data model is prepared.
E) database and file definitions are prepared.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: Employee identification number, name, address, and skill
Q12: Analysts should use intelligent keys as identifiers.
Q14: Conceptual data modeling is typically done in
Q24: A ternary relationship is the equivalent of
Q36: Match each of the following terms with
Q74: An attribute (or combination of attributes) that
Q90: Analysts should consider substituting single-attribute surrogate keys
Q97: Cost is the primary focus of high-end
Q122: A multivalued attribute is an attribute that
Q176: A system design strategy represents a particular