■ DBMS contains information about a particular enterprise ● Collection of interrelated data ● Set of programs to access the data ● An environment that is both convenient and efficient to use ■ Database Applications: ● Banking: all transactions ● Airlines: reservations, schedules ● Universities: registration, grades ● Sales: customers, products, purchases ● Online retailers: order tracking, customized recommendations ● Manufacturing: production, inventory, orders, supply chain ● Human resources: employee records, salaries, tax deductions ■ Databases touch all aspects of our lives. and More.....