The following text in WS-Transfer introduction is redundant (especially now that WSRT is no more):

"As per the SOAP processing model, other specifications MAY define SOAP headers which can be optionally added to request messages to require the transfer of subsets or the application of transformations of the resource associated with the endpoint reference. When the Action IRIs defined by this specification are used, such extension specifications MUST also allow the basic processing models defined herein."

Proposal:

Remove the text