The advent of AJAX as a Web application model is significantly changing the
traffic profile seen on the server side. The typical Web pattern usage of a
user sitting idle on a Web page filling out fields and hitting the submit
button to the next link is now transforming into sophisticated client-side
JavaScript and rich user interfaces that constantly communicate with the
server whenever an event is posted on a form such as a checkbox click, key
press, or tab focus.
Think about the amount of data transmitted from the client to the server.
From a usability standpoint, the user gets rich user interfaces on a
thin-client browser without having to install anything. However, there is a
price to pay when scaling these applications on the server. Your typical
capacity-plannin... (more)
Developing lightweight J2EE client applications that interoperate with
multiple application servers can be difficult to do. Having to include an
application server-specific JAR file along with a thin client application can
significantly increase the size of the deployed application and make it too
big to be practical.
In addition, client-side execution is tightly coupled using proprietary... (more)
Caching information on the WebLogic tier can significantly increase
performance and reduce the number of external system calls needed for data
retrieval. This is especially true when an application wants to store bits of
information that rarely change, such as a list of countries or catalog
entries. Nowadays, memory is so cheap that application architectures can
benefit from caching data... (more)
The advent of AJAX as a Web application model is significantly changing the
traffic profile seen on the server side. The typical Web pattern usage of a
user sitting idle on a Web page filling out fields and hitting the submit
button to the next link is now transforming into sophisticated client-side
JavaScript and rich user interfaces that constantly communicate with the
server whenever ... (more)
Bahar Limaye is a system architect at The College Board. He has extensive experience building distributed object-oriented systems.
Keith Bergelt
Gaurav Mantri
Aditya Banerjee
John Karamitsos
Kaj van de Loo
Bob Little
Alois Reitbauer
Chris Schin
Richard Gordon
Anil Parambath
