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N-tier [message #251553]

Sat, 14 July 2007 12:28

adee_saleh
Messages: 30
Registered: May 2007
Location: Yemen

Member

i just want to know what N-tier Application mean

i read that in many books but i don't know what they mean when they say "N-tier Application"

with thanks

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Re: N-tier [message #251554 is a reply to message #251553]

Sat, 14 July 2007 12:45

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

N is a number; typically 2 or 3.
BROWSER<==>APPLICATION_SERVER<==>DATABASE_SERVER is a 3 tier application environment.
A 2 tier application environment is classic CLIENT/SERVER.

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Re: N-tier [message #251559 is a reply to message #251553]

Sat, 14 July 2007 13:44

adee_saleh
Messages: 30
Registered: May 2007
Location: Yemen

Member

thank you but can you explain the difference between classic Client/Server and 3 tier Application

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Re: N-tier [message #251563 is a reply to message #251553]

Sat, 14 July 2007 14:24

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

In 3 tier the client is a "dumb" browser.
In 2 tier the client must be smart enough to talk directly to DB server; typically via softwaer installed on a PC.
In the Oracle arena, Forms 6 was client/server while 10iAS is web based 3-tier architecture.

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