Data integration

1. Name at least six characteristics or features of a data warehouse.

2. Why is data integration required in a data warehouse, more so than in an operational application?

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3. Every data structure in the data warehouse contains the time element. Why?

1. Explain data granularity and how it is applicable to the data warehouse.

2. How are the top-down and bottom-up approaches for building a data warehouse different?

List the major types of architectures and highlight the features of any two of these.

 

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