Description: Recently there is a strong movement for encoding data for web based information exchange, such as in Business to Business communications, using XML to encode the data in the communications. Strategies are evolving, such as SOAP, but the problem specification and protocol requirements need to be clarified for enforcement by the IETF community. This BOF discusses this problem space to set forth the problem area requirements. Examining existing techniques will be done to assure the problem space is well defined.