Exam DISC-DA Practice Question 21
Study guide: Exam DISC-DA
Underwriting's data mart, loaded directly from the policy administration system, reports $48.0 million of premium for a region in 2025. The claims department's data mart, loaded from the enterprise data warehouse, reports $45.6 million for the same region and year. What best explains why the two marts disagree?
- A) A claims mart cannot hold premium, so its figure is the one in error
- B) The underwriting mart is independent and applies its own extraction and definitions
- C) A mart built as a star schema always reports smaller totals than its source
- D) The claims mart holds a finer grain, so it reports less premium in total
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