OK. I agree that http is defined as an application protocol and has been extended from its original position as a hypertext protocol. The fact that it is stateless is viewed both as a strength and weakness. Since may systems require state, one must figure out how to add state to a stateless protocol when it is needed. My point is that it possible to run CORBA over HTTP, if one likes, so the boundary here is quite loose. The application semantics of http are quite weak and one needs to include actual "operation" semantics in the http payload if one is to use it in a real SOA application, which needs to know what to do with data that is coming over the "protocol".
Dave Jan Algermissen wrote: > > On Sep 18, 2005, at 2:42 AM, David Forslund wrote: > > >> Application protocols define application semantics. They are not > >> "protocols" in the same sense of the word used in systems like CORBA, > >> DCOM, RMI, Jini, etc.. IMO, that's the root cause of the > >> misunderstanding. If these things had been called "locotorps", this > >> confusion wouldn't exist; "protocol independence" would be a good > >> idea, since protocols just move bits around. But "locotorp > >> independence" would be silly, because everybody knows that locotorps > >> define the application semantics, and how can an applications be > >> independent of application semantics?! 8-) > >> > > > > Yes. Using "protocol" for how bits on the wire are organization and > > application semantics is > > a bad idea. http is a protocol. > > No, HTTP is defining application semantics. It is an application > protocol and not > a 'bits on the wire' transport protocol. > > Jan > > ________________________________________________________________________ > _______________ > Jan Algermissen, Consultant & Programmer > http://jalgermissen.com > Tugboat Consulting, 'Applying Web technology to enterprise IT' > http://www.tugboat.de > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/NhFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/service-orientated-architecture/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
