1-Class, do some research and if you can find out what types of databases does Google uses in implementing worldwide search engines.

2-Class, how is Google BigTable different than a traditional database?

3-To what extent should end users be involved in the design of a database? How have our ideas of agile development environments affected this traditionally non-user input environment?

4-how much should should end users be involved in the design of a database?

5-please describe the role of a user in determining what data he or she requires to do his or her job.