Techniques for extended enterprise connector framework are described herein. According to one embodiment, a Java proxy is generated in a form of Java beans at a Web server as a mid-layer, using an enterprise connector. The enterprise connector provides object oriented classes that encapsulate specific function calls of a Java connector which represents a set of proprietary APIs (application programming interfaces) to access RFC modules of a backend enterprise system. A JavaScript proxy is generated for a frontend client that communicates with the Web server over the Web using a DWR (direct Web remoting) mechanism to allow the JavaScript proxy to directly access the Java proxy of the mid-layer via an AJAX (asynchronous Java and extensible markup language or XML) communication mechanism, where the JavaScript is invoked by a Web application of the frontend client at runtime. Other methods and apparatuses are also described.