what is the real time advantage of 3 tier architecture over 2 tier architecture? why we use 3 tier architure?

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i google.. to get benefits of 3tier architecture over 2 tier architecture but not get fully satisfied. 3tier architecture makes code more complex than two tier architecture. i can't figure out practical benefits of 3 tier architecture.

Posted 17-Feb-14 8:27am

utm

Updated 17-Feb-14 8:30am

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Sergey Alexandrovich Kryukov 17-Feb-14 14:39pm

What do you mean by "real time advantage"? Did not you mess up something?.. :-)
—SA

utm 17-Feb-14 14:58pm

no i am not mess up...but my problem is ..suppose i have to start new asp.net project then which architecture should i follow ? and why? project can be completed using 2 tier architecture the why should make it complex by using 3tier architecture?i need benefits of 3 tier architecture over 2 tier architecture. hope i make u clear and my situation.

Sergey Alexandrovich Kryukov 17-Feb-14 15:06pm

Then answer my simple question first...
—SA

utm 17-Feb-14 15:10pm

what simple question?

Sergey Alexandrovich Kryukov 17-Feb-14 15:14pm

If you can read, you can see it. What do you mean by "real time advantage"? Better yet, what to you mean by "real time"? Something tells me that you don't know what you are talking about...
—SA

utm 17-Feb-14 15:36pm

sir,
i am newbie on this topic. and i give my situation also.
i don't know about 3tier architecture? and my ""real time advantage" means thats when i run project on 2tier project and project on 3tier project and that time i want to get difference between them..

Sergey Alexandrovich Kryukov 17-Feb-14 16:42pm

First, it has nothing to do with "real time", in any sense of it. How can you use the words having no clue on what they are about?
And what would it mean, "get difference"? Do you want to know the "difference" between 3 and 2? It's 1... :-)
I think this is a pointless question, at least in the way you put it, it hardly can help you from newbie to advanced...
—SA

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Kornfeld Eliyahu Peter · Answer 1 · 2014-02-17T08:38:00

It seems you confused between tier and layer here...
Layer refers to the logical separation of concerns in an application, where tier refers to the physical distribution of an application...
Distributing an application over more than 2 tiers (client-server) has the advantage to get more physical resources fro your application (like running SQL on dedicated server, separated from web server). Physical separation of an application to different tiers also can help solve some security problems (web server on DMZ and SQL behind firewall).
It's true that designing and maintaining such an application is more demanding, but with certain type and certain size it's amust have design...

The14thNoah · Answer 2 · 2014-02-17T13:59:00

Solution 2

try to read this for some reference
3-Tier-architecture

Posted 17-Feb-14 13:59pm

The14thNoah