Answer Posted / shivani

in n tier aaplication a project is devided ito laters.
commenly used 3 tier architecture used to devide layer into
User interface, logical and business. User interface use to
intract with end user. logical layer provide interface
between Uers interface layer and business layer. logical
layer is connected with database.
There is another 7 tier architecture. in this architure we
use Configustion layer,common layer, data layer,Db layer,
security layer, web and workflow layer.

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