Use of the Abstract SOAP Transmission Optimization Feature is a hop-by-hop contract between a SOAP node and the next SOAP node in the SOAP message path, providing no mandatory convention for optimization of SOAP transmission through intermediaries.
William Butler Yeats: All life is a preparation for something that probably will never happen. Unless you make it happen.
A SOAP message can be passed along to a variety of intermediary systems before arriving at its final destination. The importance of this is to not restrict or limit the processing of a SOAP message to a strict point-to-point communication path.
I was looking at some examples of WS-Addressing at Javapassion and I see where its used to specify the next node to hop to using wsa:To. Is there is different place/standard to specify all of the hops for a given soap message, e.g. is there something like this: