Transformation algorithms between BPEL4WS and BPML for the executable business process

Web services is an emerging technology of distributed computing as an interoperable means integrating loosely coupled Web applications. The current basic Web services standards SOAP, WSDL and UDDI are not sufficient to fully support the complete business process. To support the business process, several specifications related to the Web services composition, such as BPEL4WS, WSCI, and BPML, were suggested and have been developed in several standard bodies under the support of major vendors. Among them, BPEL4WS and BPML may be used to describe an executable business process used in the internal enterprise system. In this paper, we suggest the transformation algorithms between BPEL4WS and BPML to enhance the interoperability. For example, a BPEL4WS implementation system may use the transformation algorithm from BPML into BPEL4WS in order to refer to a BPML-formatted executable business process. Conversely, the system may use the transformation algorithm from BPEL4WS into BPML in order to export the BPML-formatted document describing its BPEL4WS-based business process instance.