- From: Mark Baker <distobj@acm.org>
- Date: Tue, 13 May 2003 22:55:39 -0400
- To: www-ws-arch@w3.org
On Tue, May 13, 2003 at 09:42:38AM -0700, Francis McCabe wrote: > The real message is this: (IMO) the real relationship between > messaging, Web services, REST etc. is the increasing amount of semantic > commitment being made. FWIW, I think that's a useful characterization(*), but I disagree with your earlier statement that IM and email are level 0; they are level 2, as they both deal in transfer, not transport. i.e. an IM client and IM server have to agree on an application interface, not just a means of sending bits across a wire. Also FWIW, the Web has special status amoungst level 2 systems, as it is capable of engulfing all others. (*) curiously, it also synchs up very well with the IETF and OSI stack models; level 0 = transport, level 1 = session/presentation, level 2 = application. MB -- Mark Baker. Ottawa, Ontario, CANADA. http://www.markbaker.ca Web architecture consulting, technical reports, evaluation & analysis Actively seeking contract work or employment
Received on Tuesday, 13 May 2003 22:53:11 UTC