Page 202 - DCAP312_WEB_TECHNOLOGIES_II

Web Technologies-II

Notes 9.10 Review Questions

1. What is your understanding of the term database? Describe it in two or three sentences.

2. List three areas of technology growth that had direct positive effects on data systems.
Briefly explain the positive impact.

3. Name and briefly describe the major driving forces for database systems.
4. List and explain any three advantages with centralized database.
5. List and describe any three benefits of database systems in comparison with file-oriented
systems.
6. What is a data dictionary? Describe its purpose.
7. Briefly describe the features of a network data model. How are relationships represented
in a network data model?
8. Is the relational data model better than the earlier data models? Give your reasons.
9. Write down the differences between the hierarchical database model and the relational
database model.
10. How create a basic object model and also describe the rules for creating the user interface?

Answer for the Self Assessment Questions
1. (c) 2. (b) 3. (a) 4. (d) 5. (c)

6. (a) 7. (c) 8. (b) 9. (c) 10. (a)
11. (b) 12. (a) 13. (d) 14. (a) 15. (a)

9.11 Further Readings

Creating user interfaces by demonstration, by Brad A. Myers.

http://www.iam.unibe.ch/ _ducasse/FreeBooks.html.

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