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What is two tier and three tier architecture?
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Answer Posted / frso
In Two-Tier Architecture we have just two layers
1. GUI/ intrface / presentation layar
2. Database layer (where we store/retrieve our data)
Basically this architecture is followed in client/server
applications where database and application resides in the
same machine or database may in other machine conected
thtough network.
Three-Tire Architecture:
In three tier architecture we can find three layers names:
1. Presentation Layer
2. Busness Layer/ Mid Layer
3. Database Layer.
Presentation Layer: GUI/Interface , where a user view or
enters the data.
Business Layer: where business login and rules are execute
and can accommodate hundreds of users.
Database Layer: Data access layer takes care of connection
between the appication and storing the data as a warehouse.
This is very important layer in any architecture 'coz
finally all data comes to it and maintaining such a huge
amount of data is taken care by this layer avoiding
concurrency and maintaining scalibility, durability to the
application.
| Is This Answer Correct ? | 71 Yes | 16 No |
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