Ø Physical seperation of service layer(data access layer
as well) from the presentation layer is nothing but 3-tier architecturre.
Ø One machine for one machine for service layer( and DAL
also) and another machine for presentation layer is the actual physical
seperation in this architecture.
Ø 3-tier architecture eliminates client side
maintainance.it also makes the clients thin
Ø 3 tier architecture does not make the client 100% thin.
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