Thin and Fat Client Model

There are two type models of the client-server architecture.

Thin-client model
In a thin-client model, all of the application processing and data management is carried out on the server. The client is simply responsible for running the presentation software.

Fat-client model
In this model, the server is only responsible for data management. The software on the client implements the application logic and the interactions with the system user.



Thin CLient Model:
-Used when legacy systems are migrated to client server architectures.
-The legacy system acts as a server in its own right with a graphical interface implemented on a client.
-A major disadvantage is that it places a heavy processing load on both the server and the network.

Fat Client Model:

-More processing is delegated to the client as the application processing is locally executed.
-Most suitable for new C/S systems where the capabilities of the client system are known in advance.
-More complex than a thin client model especially for management. New versions of the application have to be installed on all clients.

Class Diagrams

Consider about a web site that is a course specific web site. As most of us related with it i mean with most of us as students :) A web site that has a user entry and admins as professors and tha assitants of them. Also there are invited speakers whom have been invited to the classes and whom are in the software development market. As i did not said yet the site is the web site of the sofware programming course! See the below explaniations as example to the class diagram of the system:

There are five classes in the system.



The description is as follows:



And at last the class diagram:




Most info about class diagram will be explained in the following article. ALso some other diagrams activity or use case diagram infos and examples for the same system will be added to it.
See yas:))

Birthday Alert!!!

Hi to everyone firstly

Since its my birthday today i did not feel free to write any article.

Just wanna say happy birthday to me :P