Database Users and Administrators
A primary goal of a database system is to retrieve information from and store
new information into the database. People who work with a database can be
categorized as database users or database administrators.
1. Database Users and User Interfaces
There are four different types of database-system users, differentiated by the way
they expect to interact with the system. Different types of user interfaces have
been designed for the different types of users.
• Na¨?ve users are unsophisticated users who interact with the system by invoking
one of the application programs that have been written previously.
For example, a clerk in the university who needs to add a new instructor to
department A invokes a program called new hire. This program asks the clerk
for the name of the new instructor, her new ID, the name of the department
(that is, A), and the salary.
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