Differences Between sychronous and asychronous processes with WS-BPEL

Here we focus on the differences of WSDL interface for the process.

Two main points

1. portType:
In a Synchronous process, there is only one portType defined, while two portTypes are defined for the asynchronous process, each with a one-way operation: one to initiate the asynchronous process and one for the process to call back the client with the asynchronous reponse.

2. partnerLinkType:
The parternerLinkType defined for a synchronous process has only one role, while the one defined for the asynchronous process has two roles, one for the service provider and one for the requester.