As i feel this a simple thory that was mplemeted time ago and now it has come to a better level. When i serched on web for the technology it expalined here.
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This is how you see the screen if you look at the screen without glasses.
We are creating an uncompromising middleware platform for Web services which treats Web services as first class components instead of as a facade to some existing platform like J2EE. Apache Axis2 is the first SOAP stack which espouses this design in its guts: we focus entirely on doing what's right for Web services first. We make no apologies for being XML centric instead of Java object centric. An add-on layer allows Axis2 to play by the, sometimes klunky, Java rules and regulations (like JAX-RPC) for those who want the comfort of (and are willing to pay the price of) those rules & regulations.
The best part is, all of our software is available free under an open source license.
The even better part is, we are not just giving the software away under open source licenses, but we are also developing it in true open source fashion fully involving the user community. Our role in Apache Web services projects proves that but much more is to come. We've only just begun.
In WSO2, in addition to building the pieces in Apache, we are working on offering integrated Web services server stacks which will provide uncompromising solutions to those looking for the absolute best Web services middleware. "