From the Sender perspective this is very similar to the previous CDA scenario, except that the sender requests a Business Acknowledgement.
The sending application must also provide the capability to receive and acknowledge the Business Acknowledgement.
ITK Router view
The ITK Router is not affected by the request for a Business Acknowledgement. This is simply forwarded as an attribute of the message.
The Receiver at the infrastructure level – essentially within the Reference Implementation – is not affected by the request for a Business Acknowledgement. This is an application responsibility and must be handled by the application code.
The application will construct the Business Acknowledgement (according to the schema in the ITK Core Pack) and send back to the originator ITK address using the standard sendAsync method of the API.