Convert an IDOC

We are having an IDOC to File scenario. Due to performance issues we are planning to move to Proxy.

Now what are all the steps needed to convert the sender IDOC into a Proxy.

I have looked into the following blog

/people/ravikumar.allampallam/blog/2005/08/14/choose-the-right-adapter-to-integrate-with-sap-systems