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Write a 500-word summary that defines, compares, and contrasts the Ross and Kimball approaches to data warehousing

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1. Write a 500-word summary that defines, compares, and contrasts the Ross and Kimball approaches to data warehousing. Please include the characteristics of the data warehouses as output of each approach. Provide five references within the paper and cite at least two within your writing. (40 points) 
2. Design a star schema to organize the sales information to meet the marketing department’s needs. Identify the grain, the dimensions, the attributes of those dimensions, the fact table, and the attributes of the fact table. Provide an ERD or UML of the dimensional model. (60 points)