XAP is an open source declarative framework for building Enterprise Web 2.0 applications. It enables the richness and functionality of desktop software in a browser environment, leverages the power of Ajax, but significantly lowers the complexity and cost of code development and maintenance.

XAP provides an XML-based framework for building, deploying and maintaining rich, interactive, Ajax-powered web applications. A basic principal of XAP is to leverage existing Ajax projects such as Dojo, as well as other community efforts such as Eclipse ATF (Ajax Toolkit Framework). Completely eXtensible, XAP can plug-in any Ajax toolkits or you can create your own components to extend the markup language. By using XAL, Nexaweb's declarative markup language, the amount of scripting required is dramatically reduced, solving key development and maintenance challenges associated with Ajax programming.

XAP is a pure client-side runtime that is implemented using Ajax. It supports popular modern browsers and can work with any server side environments.

XAP was initially developed by Nexaweb Technologies Inc and has been established as an open source project at the Apache Software Foundation. If you wish to get involved or have questions we encourage you post your questions to Apache: xap-dev@incubator.apache.org. We will monitor the email list and answer your questions there.

To visit the XAP - eXtensible Ajax Project website visit: http://incubator.apache.org/xap/.

To learn more about Nexaweb's original XAP proposal to the Apache Software Foundation, visit the links below.