Using JRun web services

JRun lets you publish and consume web services. Web services provide platform- and location-independent computing using XML and standard Internet protocols such as HTTP. By allowing previously incompatible applications to interoperate over the web regardless of language, platform, or operating system, web services create new business opportunities and help companies adapt to changing business relationships.

http://livedocs.macromedia.com/jrun/4/Getting_Started_with_JRun/webservtutorial2.htm