7 - Indira Gandhi Centre for Atomic Research

Figure 3 Deployment Diagram
5. Implementation
The SIRD maintains resources on different databases such as MySQL database on Linux
server that holds details of books, Access Database running on a Windows 2000 server
that contains details of journals, flat files on Linux server that contains details of
publications, etc. The user interfaces and the files needed by the client are published on an
Apache web server. The user can login to the system by providing a user id and password.
Once the user logs in, the search page is displayed, where the user keys-in the search
string and selects the resource to be searched. Then based on the resource, the request is
routed to the server that contains the resource.
Java is the language used for developing the client and the server. Functions are defined in
an interface definition language and mapped to java using the idlj compiler that comes
with the jdk1.5. Once the request is passed to the server, the server queries the database,
and passes the results back to the client. The client parses the result into a HTML file and
this is displayed in the browser window. Figures 4 & 5). For the convenience of the
patrons, the system also maintains a profile that lists the keywords that a particular patron
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