I was just going through last night's lower priority e-mail and saw the following from the DevelopMentor SOAP mailing list. In the tradition of the April 1 RFCs, here are some for Web Services (and if someone could post a link to the April 1, 2004 prank RFC, I'd appreciate it:) ):
[Followup, the RFC is http://ietf.org/rfc/rfc3751.txt?number=3751)
Web Services Performance (WS-Performance ) provides policy assertions that can be used to describe Web service performance characteristics and in particular provides set of metrics for already existing Web Services specifications. One of the most important concerns when composing Web Services is impact on performance of each specification. Therefore if there could be a synthetic indicator of performance impact of each specification it could help to automate estimation of composed Web Services performance and that is the role of WS-Performance to provide framework for such estimations.
This specification composes especially well with WS-Goodness  to provide Web services that are both good and of reliable performance and although currently may be a bit slow (as all Web Services ...) but WS-Performance helps to estimate how fast (or slow) they are!
For details see:
The best way to predict the future is to invent it - Alan Kay