Again, this is in the context of a recent discussion about Business Process Modelling Notation (BPMN), BPEL (Business Process Execution Language), around the use of IBM BPM and IBM Integration Bus ( used as an ESB )
When designing an SOA solution, it's not always clear whether you should use a Web services BPEL process or an ESB mediation flow. This article describes considerations that will help you decide which is right for you.
The Patterns for e-business are a group of proven, reusable assets that can be used to increase the speed of developing and deploying e-business applications. This IBM Redbooks publication focuses on the use of the WebSphere Enterprise Service Bus and WebSphere Message Broker together to form an enterprise service bus (ESB) implemented in a service-oriented architecture (SOA).