A DBMS organizes a coherent quantity of data - the data base -, considering the different information requirements of a company.
A DBMS ensures the safety, integrity and consistency of the data in case of minimum, controlled redundancy.
Due to the integration of the data and their controlled access by a DBMS the data can be used by a lot of users at the same time. This leads to less access conflicts between the single company fields.
For the data definition and manipulation a standard interface, the query language, is available. Thus, you can access the data base from different applications according to the same procedure.