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Paul Merrell

Safe Plurality: Can it be done using OOXML's Markup Compatibility and Extensions mechan... - 0 views

broadcast.oreilly.com/...plurality-markup-compatab.html

OOXML compatibility frameworks

shared by Paul Merrell on 14 Feb 09 - Cached
  • During the OOXML standardization proceedings, the ISO particpants felt that there was one particular sub-technology, Markup Compatibility and Extensibility (MCE), that was potentially of such usefulness by other standards, that it was brought out into its own part. It is now IS29500:2009 Part 3: you can download it in its ECMA form here, it only has about 15 pages of substantive text. The particular issue that MCE address is this: what is an application supposed to do when it finds some markup it wasn't programmed to accept? This could be extension elements in some foreign namespace, but it could also be some elements from a known namespace: the case when a document was made against a newer version of the standard than the application.
  • Paul Merrell on 14 Feb 09
     
    Rick Jelliffe posts a frank view of the OOXML compatibility framework, a document I've studied myself in the past. There is much that is laudable about the framework, but there are also aspects that are troublesome. Jelliffe identifies one red flag item, the freedom for a vendor to "proprietize" OOXML using the MustUnderstand attribute and offers some suggestions for lessening that danger through redrafting of the spec. One issue he does not touch, however, is the Microsoft Open Specification Promise covenant not to sue, a deeply flawed document in terms of anyone implementing OOXML other than Microsoft. Still, there is so much prior art for the OOXML compatibility framework that I doubt any patent reading on it would survive judicial review. E.g., a highly similar framework has been implemented in WordPerfect since version 6.0. and the OOXML framework is remarkably similar to the compatibility framework specified by OASIS OpenDocument 1.0 but subsequently gutted at ISO. The Jelliffe article offers a good overview of factors that must be considered in designing a standard's compatibility framework. For those that go on to read the compatibility framework's specification, keep in mind that in several places the document falsely claims that it is an interoperability framework. It is not. It is a framework designed for one-way transfer of data, not interoperability which involves round-trip 2-way of exchange of data without data loss.
Gary Edwards

The Education of Gary Edwards - Rick Jelliffe on O'Reilly Broadcast - 0 views

broadcast.oreilly.com/...education-of-gary-edwards.html

odf rick-jelliffe ge ooxml html webkit foundation cdf

shared by Gary Edwards on 17 Apr 09 - Cached
  • Gary Edwards on 17 Apr 09
     
    I wonder how i missed this? Incredibly, i have my own biographer and i didn't know it! The date line is September, 2008, I had turned off all my ODF-OOXML-OASIS searches and blog feeds back in October of 2007 when we moved the da Vinci plug-in to HTML+ using the W3C CDF model. Is it appropriate to send flowers to your secret biographer? Maybe i'll find some time and update his work. The gap between October 2007 and April of 2009 is filled with adventure and wonder. And WebKit!

    "....One of the more interesting characters in the recent standards battles has been Gary Edwards: he was a member of the original ODF TC in 2002 which oversaw the creation of ODF 1.0 in 2005, but gradually became more concerned about large vendor dominance of the ODF TC frustrating what he saw as critical improvements in the area of interoperability. This compromised the ability of ODF to act as a universal format."

    "....Edwards increasingly came to believe that the battleground had shifted, with the SharePoint threat increasingly needing to be the focus of open standards and FOSS attention, not just the standalone desktop applications: I think Edwards tends to see Office Open XML as a stalking horse for Microsoft to get its foot back in the door for back-end systems....."

    "....Edwards and some colleagues split with some acrimony from the ODF effort in 2007, and subsequently see W3C's Compound Document Formats (CDF) as holding the best promise for interoperability. Edwards' public comments are an interesting reflection of an person evolving their opinion in the light of experience, events and changing opportunities...."

    ".... I have put together some interesting quotes from him which, I hope, fairly bring out some of the themes I see. As always, read the source to get more info: ..... "

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