When to use OSB and When use BPEL

Oracle OSB:  If the primary requirement is for a solutions to accomplish  content based routing,transformation,message validations,enrichments and the integration is enterprise wide and features like message throttling,service virtualization,Reliable messaging are important,the Oracle Service Bus is a great fit .

Oracle BPEL: If the requirement is for a solution to design, manage and run business processes which are stateful with functionalities like Human Workflow,Business Rules,monitoring and management and composite service implementations,the choice should be BPEL.