Architecture of Database

A DBMS architecture can be of the following types:

• Centralized
• Decentralized
• Hierarchical

DBMS design will be seen as either one tier or multi-tier.

An architecture having n-tier splits the entire system into related but independent n modules that can be independently customized, changed, altered, or replaced easily.

The design of an info system is extremely a lot of influenced by the first automatic data processing system on that the info system runs.

Database systems will be centralized, or client-server, wherever one server machine executes work on behalf of multiple shopper machines.

Database systems can even be designed to take advantage of parallel laptop architectures.

Distributed databases span multiple geographically separated machines

            THE THREE TIER ARCHITECTURE

A 3-tier application is an application program that is structured into three major parts each of them is distributed to a different places in a network. These three divisions are as follows:

• Presentation layer (workstation)
• Application layer (business)
• Database layer