Centralized v/s Decentralized DBMS ?

    Centralized DBMS:

In centralized DBMS data are located at single server

Centralized DBMS is used in small organization.

Centralized data is simple & successfully done by a single person.

Company operations & the scope of the problem are stored by single person Decentralized DBMS:

In decentralized DBMS data located at different serves.

Decentralized DBMS is used in large organization

In large & complex projects the data base designed the typically can’t be done by only 1 person.

In that case a selected team of data base is employed to tackle  a complex data base project.

In the decentralized DBMS the designed frame work the data base designed task is divided in to several modules.

Each designed group creates an conceptual data model corresponding to the subset being modeled.

Each conceptual model is then rectified individual and after verification process has been completed all the modules are integrated in to one conceptual model.