Difference between revisions of "Cloud Architecture Design Patterns"

(Created page with " =Architecting on AWS= All applications are broadly divided into two types. These are '''2 tier''' or '''3 tier''' architecture. Basically at high level we can say that '''2-t...")
 
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=Architecting on AWS=
 
=Architecting on AWS=
 
All applications are broadly divided into two types. These are '''2 tier''' or '''3 tier''' architecture. Basically at high level we can say that '''2-tier architecture is Client server application''' and '''3-tier architecture is Web based application'''.
 
All applications are broadly divided into two types. These are '''2 tier''' or '''3 tier''' architecture. Basically at high level we can say that '''2-tier architecture is Client server application''' and '''3-tier architecture is Web based application'''.
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==Two-Tier Architecture==
 
==Two-Tier Architecture==
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The two-tier is based on Client Server architecture. The two-tier architecture is like client server application. The direct communication takes place between client and server. There is no intermediate between client and server. Because of tight coupling a 2 tiered application will run faster.
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https://qph.fs.quoracdn.net/main-qimg-8ddb5c6744aa408533b8ece69ccf40c8.webp
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The above figure shows the architecture of two-tier. Here the direct communication happens between client and server, there is no intermediate layer between client and server. The Two-tier architecture is divided into two parts:
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* Client Application (Client Tier)
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* Database (Data Tier)
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On client application side the code is written for saving the data in database server. Client sends the request to server and it process the request & send back with data. The main problem of two tier architecture is the server cannot respond multiple request same time, as a result it cause a data integrity issue. When the developers are not disciplined, the display logic, business logic and database logic are muddled up and/or duplicated in a 2tier client server system.
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'''Advantages:'''
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* Easy to maintain and modification is bit easy.
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* Communication is faster.
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'''Disadvantages:'''
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* In two tier architecture application performance will be degrade upon increasing the users.
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* Cost-ineffective.
  
 
==[[Three-Tier Architecture]]==
 
==[[Three-Tier Architecture]]==

Revision as of 09:08, 12 January 2020

Architecting on AWS

All applications are broadly divided into two types. These are 2 tier or 3 tier architecture. Basically at high level we can say that 2-tier architecture is Client server application and 3-tier architecture is Web based application.

Two-Tier Architecture

The two-tier is based on Client Server architecture. The two-tier architecture is like client server application. The direct communication takes place between client and server. There is no intermediate between client and server. Because of tight coupling a 2 tiered application will run faster.

https://qph.fs.quoracdn.net/main-qimg-8ddb5c6744aa408533b8ece69ccf40c8.webp

The above figure shows the architecture of two-tier. Here the direct communication happens between client and server, there is no intermediate layer between client and server. The Two-tier architecture is divided into two parts:

  • Client Application (Client Tier)
  • Database (Data Tier)

On client application side the code is written for saving the data in database server. Client sends the request to server and it process the request & send back with data. The main problem of two tier architecture is the server cannot respond multiple request same time, as a result it cause a data integrity issue. When the developers are not disciplined, the display logic, business logic and database logic are muddled up and/or duplicated in a 2tier client server system.

Advantages:

  • Easy to maintain and modification is bit easy.
  • Communication is faster.

Disadvantages:

  • In two tier architecture application performance will be degrade upon increasing the users.
  • Cost-ineffective.

Three-Tier Architecture