[ebxml-dev] difference between DeliveryReceipt and Acknowledgment

[Vijaya Kumar <nmvijay@SAMSUNGSDSINDIA.com>]

Hi, 
		
according to ebXML MS spec v1.0,   in a response message,

1> When the Acknowledgment element should be present? and 
2> When the DeliveryReceipt should be present?. and 
3> what is the significance of the each element in the response message.

with respect to single-hop messaging.

Could someone shed some light on this?

Vijay