For each enrollment request message, a health insurance carriers web service always returns a response message acknowledgement the receipt of the enrollment request. If there are problems fulfilling the requested enrollment, the web service may respond at a later time with an additional response message detailing why the enrollment could not be fulfilled.
Which Oracle SOA Suite service component should be used to implement this integration pattern?
In an Oracle SOA Suite integration pattern, when handling complex integration processes involving synchronous and asynchronous operations such as waiting for an initial response and possibly a later detailed response, a BPEL Process is the most suitable choice. A BPEL Process supports long-running transactions and can handle the asynchronous patterns described in the question. It can receive an initial response, wait, and then respond appropriately to additional messages if there are any issues fulfilling the enrollment. A Mediator, on the other hand, is used for routing, simple data transformation, and synchronous interactions, and is not ideal for this scenario.
A. BPEL Process
Asyncronous BPEL Process could do the job nicely. Don't see how a mediator could do it