DATA ANALYSIS > QUESTIONS & ANSWERS > ITMD_526_ITMD_826_Spring_2017_Exercise_03 Illinois Institute Of Technology ITMD 526 (All)
ITMD_526_ITMD_826_Spring_2017_Exercise_03 Illinois Institute Of Technology ITMD 526
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ITMD 526 Data Warehousing Exercise 03 1. Name three entity relationship modeling and business goals of an OLTP system database? Answer: E-R modeling and business goals of OLTP system database ar... e as follows: 1. Removing data redundancy 2. Ensureing data consistency 3. Expressing microscopic relationships 2. Name three entity relationship modeling and business goals of an Data Warehouse system database? Answer: E-R modeling and business goals of Data Warehouse system database are as follows: 1. Capturing critical measures 2. Views along dimensions 3. Intuitive to business users 3. When creating a Star Schema Database, which table do you load first, dimension table or a fact table? Answer: Dimension tables need to be loaded first. Since the fact table contains the keys from dimensional tables. This is a Cardinal Rule of Dimensional Data Warehouses. 4. When developing Data Warehouse Use Case Diagrams, Bruckner, List, and Schiefer, there are five formally defined steps to building Use Cases. Please list these steps in order from the earliest to the final step [Show More]
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