What is a 3 -tier architecture?

Three tier architecture consists of presentation layer, bussiness objects layer and database layer. Three tier comes under Model-2 frame work.

Model 1 frame work consis of simply presentation and database. It is suitable for simple applications.

What are the advantages of three tier architecture.

Each layer is independed.

Each can be modified or upgarded with out affecting other two.

Communication between three layers are carried out using standard methods.

 


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