The OpenAjax Hub, providing interoperability between AJAX (Asynchronous JavaScript and XML) components made with different AJAX toolkits, is expected to be available this fall, an official with the OpenAjax Alliance said on Thursday at The 2007 Rich Web Experience conference in San Jose, Calif. “OpenAjax Hub is a publish and subscribe engine, very small, which allows components to talk to each other on the same Web page,” said Jon Ferraiolo, a Web architect at IBM who has been managing operations at the alliance. Featured in the alliance have been major vendors such as Sun Microsystems, Oracle and IBM. “The main thing that [the hub] allows you to do is develop components in different toolkits,” such as Dojo or Google Web Toolkit, Ferraiolo said. The technology is important for mashup widgets, he said. The hub has been described as JavaScript functionality that would be integrated into AJAX toolkits. Software Development