Question: questions to ask when building a data warehouse?
Answer: What is Datawarehousing? A Datawarehouse is the repository of a data and it is used for Management decision support system. ... 
What is Business Intelligence? ... 
What is Dimension Table? ... 
What is Fact Table? ... 
What are the stages of Datawarehousing? ... 
What is Data Mining? ... 
What is OLTP? ... 
What is OLAP?