In the rush to develop entirely new Web 2.0 systems based on Ajax, it is often easy to lose sight of how it can be used to improve the so-called “legacy” enterprise systems. Over at the Ext JS blog, there’s a post about German developer who put together a reporting/BI application to front-end RPG code running on an AS400.
The backend serves up JSON data (together with this old article about reskinning a Spring MVC application with Tibco GI, it makes for a solid approach for refactoring existing webapps) to the Ext JS/Flash front-end. Slick. You can view a demo (unfortunately in German for you non-German speakers) here.
