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1. Discuss the problems associated with duplication of data. How can we eliminate or control them. 2. Database is a model of a users view

1. Discuss the problems associated with duplication of data. How can we eliminate or control them.

2. Database is a model of a users view of the word. How well does should it fit the mental models of the people who are going to use the system?

3. What are the consequences of failures and mistakes in maintaining databases? What are the best physical design practices (in terms of hardware and data storage) in your opinion for a given organization?

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