Tim Ewald’s asking all the right questions;

If all of this makes your head spinning, it should, because there is a lack of consistency here. If I’m designing a Web service, where do semantics exist? Are they in the message body, where they started? Are they in one or both of the action URIs? If they aren’t in SOAPAction because we don’t want to count on a header, should they be in wsa:Action, which is also a header? Can portType/operation define semantics (as the default values of various action headers suggest) or not?

Sounds eerily similar to some previous comments of mine.

I’ve used (and studied) many distributed computing platforms, and I’ve never seen anything quite so thoroughly fouled up as Web services has fouled up the the essence of the contract. It tried to be everything to everybody, and in the end is nothing to anybody. Constrain or die.


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