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reasons EXERCISES 1. Match the columns: 1. data redundancy A. foreign keys for relationships B. data storage C. large data volumes D. used for storing data E. structure definitions F easy to administer G. wasted storage space H. unified view of corporate data I. data separated from program logic J. errors on customer documents 2. inconsistent data 3. data independence 4. data integration 5. data repository 6. data dictionary 7. decision-support database 8. relational data model 9. centralized database 10. punched card 2. "Escalating demand for information and explosive growth of computing tech- nology together enabled the evolution of database systems." Discuss this state- ment, giving your reasons for agreeing or disagreeing. 3. You are hired as the project leader for a new database project at a local bank. The bank wants to convert the existing file-oriented systems to a database system. Your department head wants you to write a note to the Executive Vice President listing the expected benefits of the proposed database system i comparison with file-oriented systems. Write a one-page note. Compare the features of the hierarchical, network, and relational data models Explain how related data elements are linked in each model. 4. 5. A manufacturer of electronic components has two factories in two different states. The company has a central warehouse at a location where the head office is situated. There are five sales offices in five different regions of the country. Discuss whether the company should have a centralized database or distributed databases. List the advantages and disadvantages of each approach. ^ Ch-03,The,Relati Entity Rel