A mapping algorithm from WS-CDL to BPEL

WS-CDL (Web Service Choreography Description Language) is a language to describe multiple party how to work with together to accomplish a work in the context of SOA. BEPL (Business Process Execution Language) can get the same point, but they are from different view. WS-CDL is from a globe view which describe multiple parties how to communicate with each other, while BPEL is from a point that from a role who participate in this work to manage the process of the work. Usually these two way work together to describe and implement the business process. But WS-CDL have more advantages to achieve the most important goal of SOA-flexibility. So W3C give a suggestion to create a algorithm mapping from WS-CDL to BPEL, this paper will give such a way to accomplish this work.