I found the pattern that may be useful to develop the Ajax application.
A pattern describes an optimal solution to a common problem within a specific context.
From the IAWiki:
Patterns are optimal solutions to common problems. As common problems are tossed around a community and are resolved, common solutions often spontaneously emerge. Eventually, the best of these rise above the din and self-identify and become refined until they reach the status of a Design Pattern.
Each pattern has four primary components:
- a title
- a problem
- a context
- a solution
The example below is from http://developer.yahoo.com/ypatterns/


