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DATA WAREHOUSING FUNDAMENTALS: A Comprehensive Guide for IT Professionals by Paulraj Ponniah

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6.7. REVIEW QUESTIONS

  1. "In a data warehouse, business requirements of the users form the single and most powerful driving force." Do you agree? If you do, state four reasons why. If not, is there any other such driving force?

  2. How do accurate information diagrams turn into sound data models for your data marts? Explain briefly.

  3. Name five architectural components that are strongly impacted by business requirements. Explain the impact of business requirements on anyone of those five components.

  4. What is the impact of requirements on the selection of vendor tools and products? Do requirements directly determine the choice of tools?

  5. List any four aspects of information delivery that are directly impacted by business requirements. For two of those aspects, describe the impact.

  6. How do business requirements affect the choice of DBMS? Describe any three of the ways in which the selection of DBMS is affected.

  7. What are MDDBs? What types of business requirements determine the use of MDDBs in a data warehouse?

  8. How do requirements affect the choice of the metadata framework? Explain very briefly.

  9. What types of user requirements dictate the granularity or the levels of detail in a data warehouse?

  10. How do you estimate the storage size? What factors determine the size?

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