7 - Indira Gandhi Centre for Atomic Research

The figure 2 depicts the architecture of CORBA. Each system that wishes to access a
remote system should have ORB running on it. The actual communication occurs between
the ORBs. For the process of ORB communication between different platforms, the
Internet Inter-ORB Protocol (IIOP) proves useful. The IIOP translates the ORB requests
into TCP/IP calls and sends them over the network to the system at the other end. CORBA
offers a better solution when compared to RMI. RMI is language specific; but CORBA
can be used irrespective of the programming language and platform.
Figure 2 CORBA
Architecture
Client
Server
ORB
ORB
Network
IIOP
4.Architectural Design
The following figure 3 is the designed structure of the deployment of the CORBA system.
The module that acts as the server runs on the systems that contain the databases. It
provides the function that services the client request; execute the task of fetching data
from the databases and pass the results to the client. The server also runs the naming
service. The server registers any object implementation that it provides. Also the client
searches for object references in the naming service. The module in the client contains the
files that are needed to contact the server, pass the parameters and retrieve the search
result from the server. It also contains the necessary user interfaces needed to operate the
system. The client module and the user interfaces are published on a web server so that it
can be accessed from anywhere.
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