Relationship Between DBMS and Application Program

There is very close relationship between database management system and applications program. The application program provides the user-interface to send requests to database management system and to receive processed results from database management system. The database management system processed the requests and returns the results to the application program and also controls and manages the database.
In most of the database management systems, application programs are used for interfacing with database. The user communicates with the data system through the user-interface part of the application program. The application program is developed according to the requirements of the users. The application programmer must have the complete knowledge about database management system and databases used in it. Then he can easily develop the application program. The application program provides an easy and user-friendly user-interface to access the database.