DBMS Architecture – Three -Tier Architecture, What’s the Main The benefit of a Three-Tier Architecture, The Three Tiers in a Three-Tier Architecture and read more with example.
DBMS Architecture focuses on the design, development, implementation, and maintenance of computer programs that store and organize information for businesses, agencies, and institutions.
DBMS Three -Tier Architecture
The three-tier architecture allows any one of the three tiers to be upgraded or replaced independently DBMS architecture also know Database Architecture.
The user interface is implemented on a desktop PC and uses a standard graphical user interface with different modules running on the application server.
The relational database management system on the database server contains the computer data storage logic.
The middle tiers are usually multitiered.
Since the three are not physical but logical in nature, they may run in different servers both in on-premises based solutions, as well as in software-as-a-service (SaaS).
What’s the Main The benefit of a Three-Tier Architecture?
it provides great freedom to development teams who can independently update or replace only specific parts of the application without affecting the product as a whole.
The application can be scaled up and out rather easily by detaching the front-end application from the databases that are selected according to the individual needs of the customer.
New hardware, such as new servers, can also be added at a later time to deal with massive amounts of data or particularly demanding services.
A three-tier-architecture also provides a higher degree of flexibility to enterprises who may want to adopt new technology as soon as it becomes available.
Critical components of the application can be encapsulated and retained while the whole system keeps evolving organically.
Development cycle or upgrade times are significantly improved ensuring minimal disruption in the customer’s experience.
Different teams can work on different sections of the application rather than on the full stack according to their areas of expertise, improving their efficiency and speed.
The Three Tiers in a Three-Tier Architecture
Presentation Tier
It occupies the top level and displays information related to services available on a website in the form of a graphical user interface (GUI).
It constitutes the front-end layer of the application and the interface with which end-users will interact through a web-based application.
This tier is usually built on web development frameworks, such as CSS or JavaScript, and communicates with other tiers by sending results to the browser and other tiers in the network through API calls.
Application Tier
This tier — also called the middle tier, logic tier, business logic, or logic tier — is pulled from the presentation tier.
It controls the application’s core functionality by performing detailed processing and is usually coded in programming languages, such as Python, Java, C++, .NET, etc.
Data Tier
Houses database servers where information is stored and retrieved.
Data in this tier is kept independent of application servers or business logic, and is managed and accessed with programs, such as MongoDB, Oracle, MySQL, and Microsoft SQL Server.
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