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what are the advantage of three tier architecture

 
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what are the advantage of three tier architecture ?
 
Rancher
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This might be useful for you for understanding the Three-Tier Architecture.
 
Author
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Separation of concerns.

Do you not have access to the web? It seems like you do, since you're posting here.
 
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Also SearchFirst. I'm sure, you will get some valuable replies.
 
Greenhorn
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Three tier architecture is used where one needs to separate the view from the controller and database.

For eg, using google website, the view which you see, does not contain any data. Data is kept at different location where all database is stored, and there is one server which acts as controller for getting request from view and finding appropriate data from database.

Advantages can be listed as:

1) Changes to business logic automatically enforced by server – changes require only new application server software to be installed
2) Avoids unnecessary overloading of memory due to database, controller and view all in one place.
3) Provides Encapsulation in OO Systems
4) Business logic not with database server and client, which improves performance
5) Server logic is will become portable to other database server platforms
 
Don't get me started about those stupid light bulbs.
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