2



Choreography &
Orchestration together
Send
PO
Receive PO Ack
Receive PO Response
Transform
Transform

Buyer-Participant “A”


Receive
PO
Send PO Ack
Receive PO Response
Translate
Transform

Seller-Participant “B”

BPEL Workflow
JAVA application
CDL Collaboration Contract
PO Request
PO Acknowledgement
PO Response
#1
#2
#3





Create
PO
Create
PO Ack
Create
PO Resp
Step-1
Step-2
WSCI Contract
Step-3
Step-3