Multiple Choice
In data modeling:
A) More than one alternative may exist for a user requirement
B) Additional information from users is usually needed in order to evaluate alternatives
C) The process is usually iterative or repetitive
D) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Design errors are more difficult to detect
Q8: A common refinement of a data model
Q9: Whenever an entity can exist in multiple
Q10: One important reason for documenting design decisions
Q11: Primary keys for entity types:<br>A) Can be
Q13: Both SQL:1999 and the Relational Model directly
Q14: Design documentation:<br>A) Should explain subtle design decisions<br>B)
Q15: Converting an optional 1-M relationship into a
Q16: When a 1-1 relationship is converted into
Q17: During narrative problem analysis you should look