+Defining a database involves specifying the data types, structure, and constraints for the data to be stored in the database.
+Constructing the database is the process of storing the data itself on some storage medium that is controlled by the DBMS.
+Manipulating a database includes such functions as querying the database to retrieve specific data, updating the database to reflect changes in the mini-world, and generating reports from the data.
+Sharing a database allows multiple users and programs to access the database concurrently.