All of the following are advantages of packaged data models EXCEPT:
A) packaged data models can be built using proven components evolved from cumulative experiences.
B) projects take less time and cost less.
C) the data model is easier to evolve.
D) more one-to-one relationships give the data model more flexibility.
Correct Answer:
Verified
Q19: Subtypes should be used when:
A) there are
Q20: In the figure below, the patient must
Q21: The subtype discriminator in the figure below
Q22: The figure below is an example of
Q23: Packaged data models:
A) are ready to use
Q25: Using a packaged data model, projects take
Q26: In a supertype/subtype hierarchy, subtypes that are
Q27: The subtype discriminator is a composite attribute
Q28: In a supertype/subtype hierarchy, each subtype has:
A)
Q29: Which of the following statements is true
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