Database Reference
In-Depth Information
sever model, and later evolved into three-tier client/server model, and finally into the N-tier
client/server model, which is also known as the Internet computing model.
Two-Tier Client/Server Model
The two-tier client/server model, shown in following figure, is almost the reverse of the
centralized model in that all the business and presentation logic is placed on the client
workstation, which typically is a high-powered personal computer system. The only thing
remaining on a centralized server is the database.
The benefits of the two-tier client/server model include the following: User interface is
improved as compared with systems using dumb terminals. workstation processor did
most of the work and did not have to be shared with
anyone else, so it offer the potential for improved performance Here are the drawbacks:
Expensive client workstations are required because all the application logic ran on the
client.
Applications are installed on every client workstation, and all have to be updated with a
new software release at the same time.
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