2 tier and 3 tier architecture
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The document discusses 2-tier and 3-tier architecture, with the 2-tier having direct communication between the client and database while the 3-tier separates the user interface, business logic, and data layers; it provides details on each layer including advantages like improved performance, scalability, and security for the 3-tier architecture over the 2-tier. The presentation was created by trainees of Baabtra as part of a mentoring program to explain different architecture types.
2 tier and 3 tier architecture
- 2. Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
- 4. 2 & 3-TIER ARCHITECTURE Swafeena Nima KM Swafeenanima @gmail.com www.facebook.com/ Swafeenanima twitter.com/username in.linkedin.com/in/ Swafeenanima 9562852057
- 5. 2-TIER ARCHITECTURE It is client-server architecture Direct communication Run faster(tight coupled)
- 6. 2-TIER ARCHITECTURE(Contd) Two parts: 1) Client Application (Client Tier) 2) Database (Data Tier) On client application side the code is written for saving the data in the SQL server database
- 7. Advantages: Easy to maintain and modification is bit easy Communication is faster Disadvantages: Performance will be degrade upon increasing the users Cost-ineffective
- 8. 3-TIER ARCHITECTURE Web based application Three layers: 1) Client layer 2) Business layer 3) Data layer
- 9. Client Layer Contains UI part of our application This layer is used for the design purpose where data is presented to the user or input is taken from the user
- 10. Business layer All business logic written like validation of data, calculations, data insertion etc… This acts as a interface between Client layer and Data Access Layer Make communication faster between client and data layer
- 11. Data layer Actual database is comes in the picture Contains methods to connect with database and to perform insert, update, delete, get data from database based on our input data
- 12. Advantages Performance – Because the Presentation tier can cache requests, network utilization is minimized, and the load is reduced on the Application and Data tiers. Scalability – Each tier can scale horizontally Better Re-use
- 13. Advantages(contd) High degree of flexibility in deployment platform and configuration Improve Data Integrity Improved Security – Client is not direct access to database. Easy to maintain and modification is bit easy, won’t affect o ther modules
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