. Oral Activity
A: Do you realize that many of the actions you make in daily life become data for other people to use for their own profit and learning?
B: No, I don’t know what I usually do does any good for others.
A: You do indeed, for instance, your using an automated teller machine, filling out a form for a driver’s license, ordering a book on the Internet or booking a flight on an airline can become digitized data to be sorted, managed and used by others.
B: What’s the use of these data?
A: They are important because people generally make better decisions if they have more data available to them.
B: But how can these data be efficiently used?
A: Generally speaking, raw data is not very useful and meaningful?
B: How do you plan to only extract valid and reliable data so as to create meaningful information?
A: We can do that by establishing a database which is a collection of files usually integrated, linked or cross-referenced to one another.
B: What’s the advantage of a database?
A: It is easy to organize and retrieve data and records contained in different files by using specialized database management software.
B: How about database management software?
A: It is regarded as a database management system that allows users to create, edit and update data in database files.
B: Can I add, delete, change, sort or search data in a database by means of a database management system?
A: Of course you can. However, there are different types of database management systems such as hierarchical, network, relational, and object-oriented ones. If you want to make use of them, you have to spend some time studying them.
B: yes, I will.

