In this lecture we finalize the discussion of Business Process Execution Language (WS-BPEL) used for orchestration of webservices, looking at how it can be used in a concrete case. We look also at how WSDL is related to BPEL. After the definition of the services, further steps are necessary for the orchestration layer. Service-oriented business process design follows from the previous analysis and service design phases. Here we summarize the usage of WS-BPEL standard in designing service-oriented business processes.

Lecture slides

• Wrapping-up: Service Oriented Business Process Design
• Webservices and WSDL

Questions/Exercise

• Exercise about WSDL/BPEL [solution]

Resources

• The Oracle tutorial seen during the lecture for the explanation of BPEL;
• Writing a BPEL process in ODE (very good tutorial, in particular look for FunctionProcessService for an example of <receive> and <reply>);