Negotiation Flow (part 1)

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Message Meaning U to S? S to U? After Receiving Expected Response Data in Message Optional in Message
SRY-PROP Refuse Proposal Yes Yes PROP PROP Fingerprint of proposal refused Which practices are unacceptable (To Be Designed)
SRY-RFP I won't give you a Proposal Yes Yes RFP none    
SRY-RFT Proposal Text not available No Yes RFT none Agreement Reason
SRY-TXD Data transfer not accepted Yes No TXD none   Reason
OK-PROP Proposal acceptable Yes Yes PROP none Agreement  
OK-TXD Data transfer successful Yes Yes TXD none [hash of] data transferred  

Jim Miller

http://www.w3.org/ W3C