On the basis of primary job function, define various types of users in the data base system.

Based on the basis of primary job functions, five types of users can be identified in a database system. (a) System Administrators: They oversee the database system's general operations. (b) Database Administrators: Also known as DBA, they manage the DBMS and ensure that the database is functioning properly. The DBA role is sufficiently important in Database Administration and Security. (c) Database Designers: They design the database structure. They are, in effect, the database architects. If the database design is poor, even the best application programmers and the most dedicated DBA cannot produce a useful database environment. (d) System Analysts and Programmers: They design and implement the application programs. They design and create the data entry screens, reports and procedures through which end users access and manipulate the database's data. (e) End Users: They are the people who use the application programs to run the organization's daily operations. For example, clerks, supervisors, managers, etc.