On 2011-11-16 13:56, John Levine wrote: >> What is much more important is that the data formats used by the >> IETF will still be fully supported in 15-20 years. For a new, >> and more so a proprietary data format, ... > > I'm confused. When you say a proprietary data format, I presume you > mean Microsoft's closed and undocumented PPT format, as opposed to > PPTX which is ISO/IEC Standard 29500. So you're arguing that > everyone should move to the standard PPTX. > > Or did you mean something else? John, You seem to assume that OOXML is a fully defined open standard whereby anybody can take the ISO/IEC document and implement a fully interoperable product. From what I know about the technical objections that were raised and ignored in the ISO/IEC equivalent of Last Call, that may not be the case. (I don't claim technical expertise in this area, however.) The same objection wouldn't apply, for example, to PDF/A. Brian _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf