Code360 powered by Coding Ninjas X Naukri.com. Code360 powered by Coding Ninjas X Naukri.com
Last Updated: Jul 10, 2024
Difficulty: Easy

Three-Tier Architecture in DBMS

Leveraging ChatGPT - GenAI as a Microsoft Data Expert
Speaker
Prerita Agarwal
Data Specialist @
23 Jul, 2024 @ 01:30 PM

The three-tier architecture in DBMS is a software architecture, developed in the 1990s to overcome the limitations of the two-tier architecture. The new third tier (middle tier server) is between the user interface (client) and the database. This middle tier provides process management where business logic and rules are executed, and this architecture can accommodate hundreds of users at the same time

Three-Tier Schema Architecture in DBMS

Three-tier architecture in database management systems (DBMS) is a client-server architecture that divides the application components into three logical tiers: presentation tier, application tier, and data tier. Each tier is responsible for specific functionalities, which helps modularise and manage the system efficiently.

There are  variety of ways of implementing this middle tier, such as  message servers, or application servers, transaction processing monitors. The middle tier can perform application execution, queuing, and database staging. 

If the middle tier of the three-tier architecture system provides queuing, the client can make its request to the middle tier and disengage itself because the middle tier will access the data and return the response to the client. In addition, the middle layer adds scheduling and prioritization for the works in progress. 

Characteristics

  • A three-tier architecture includes a user system interface top tier where user services (such as text input, display management, and session dialog) reside.

 

  • The middle tier of this architecture provides process management services (such as process development, process monitoring, process enactment, and process resourcing) that are shared by multiple applications. 

 

  • The third tier provides database management functionality and is dedicated to data and file services that can be optimized without using any proprietary database management system languages.

 

  • The middle tier server (also referred to as the application server) improves performance, flexibility, maintainability, reusability, and scalability by centralizing process logic.
Get the tech career you deserve, faster!
Connect with our expert counsellors to understand how to hack your way to success
User rating 4.7/5
1:1 doubt support
95% placement record
Akash Pal
Senior Software Engineer
326% Hike After Job Bootcamp
Himanshu Gusain
Programmer Analyst
32 LPA After Job Bootcamp
After Job
Bootcamp

Advantages

  • It can scale without degrading the performance as no separate connection is required from the client.
  • In the three-tier architecture, security is improved as client applications don’t have direct access to the database.
  • Data integrity is improved by eliminating data corruption through validation in the middle-tier server.

 

Disadvantages

  • Implementation of three-tier architecture is comparatively difficult.

 

FAQs

1. What are the use cases of three-tier architecture?

Three-tier architecture pattern is used for complex use-cases such as for implementing reliable and fault-tolerant microservices in distributed systems.

 

2. What are the limitations of three-tier architecture?

Implementation details, overall architecture design complexity is high, along with high development and maintenance costs.

 

Key Takeaways

This article covered three-tier architecture along with its characteristics.

Check out the Coding Ninjas Studio library to get a better hold of the data structures & algorithms and core CS subjects like Database Management System and Operating system.

Must Read Topic: Data Warehouse and Spring Boot Architecture

Side by side, you can also practice a wide variety of coding questions commonly asked in interviews in Coding Ninjas Studio. Along with coding questions, you can also find the interview experience of scholars working in renowned product-based companies here. 

 

Happy learning!

Topics covered
1.
Three-Tier Schema Architecture in DBMS
2.
Characteristics
3.
Advantages
4.
Disadvantages
5.
FAQs
6.
Key Takeaways