The CHORCH B2Bi Approach: Performing ebBP Choreographies as Distributed BPEL Orchestrations

Applying choreography and orchestration technology has become a popular method of attacking Business-2-Business integration (B2Bi) challenges like agreement and communication among integration partners, compatibility of interacting processes and distributed computing. ebXML BPSS (ebBP) as dedicated B2Bi choreography standard and WS-BPEL as number one Web service orchestration language are particularly promising technologies. While ebBP can be used as means for agreement and communication among integration partners WS-BPEL and Web services can be used to solve distributed computing issues. The CHORCH approach applies model driven development to the ebBP-BPEL tool chain in order to further foster conformance of WS-BPEL orchestrations to ebBP choreographies, compatibility of interacting WS-BPEL processes and efficient software development cycles. This paper introduces 10 requirements for applying choreography and orchestration technology to B2Bi and shows how these are reflected in the CHORCH approach by applying three different types of ebBP modeling flavors.