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There are many other warts in the Microsoft covenant not to sue. E.g., the covenant applies only to Ecma Office Open XML; it does not apply to any future version, including a version that might be approved by ISO or a variant that might be actually implemented by Microsoft in MS Office. So Microsoft makes no guarantee that it will not move the goal posts at any time.

What’s distinctive about the goals of OOXML? Primarily, to have full fidelity with pre-existing binary documents created in Microsoft Office. “What people want is to make sure that their billions of important documents can be saved in a format where they don’t lose any information. As a design goal, we said that those formats have to represent all the information that enables high-fidelity migration from the binary formats”, says Paoli. He mentions work with institutions including the British Library and the US Library of Congress, concerned to preserve the information in their electronic archive. I asked Paoli if such users could get equally good fidelity by converting their documents to ODF. “Absolutely not,” he says. “I am very clear on that. Those two formats are done for different reasons.” What can go wrong? Paoli gives as an example the myriad ways borders can be drawn round tables in Microsoft Office and all its legacy versions. “There are 100 ways to draw the lines around a table,” he says. “The Open XML format has them all, but ODF which has not been designed for backward compatibility, does not have them. It’s really the tip of the iceberg. So if someone translates a binary document with a table to ODF, you will lose the framing details. That is just a very small example.”

“Open Document Format and Office Open XML have very different goals”, says Paoli, responding to the claim that the world needs only one standard XML format for office documents. “Both of them are formats for documents … both are good.”

I put it to Paoli that OOXML is hard to implement because of all its legacy support, some of which is currently not well documented. “I don’t believe that at all. It’s actually the opposite,” he says. He make the point that third parties like Corel, which have previously implemented support for binary formats like .doc and .xls, should find it easy to transition to OOXML. “We believe Open XML adoption by vendors like Corel will be very easy because they have already been doing 90% of the work, doing the binary formats. The features are already there.”

# re: Office Open XML final draft!!! @ Wednesday, October 11, 2006 1:46 PM The past incarnations of DrawingML have been chaotic. It would be interesting, out of curiosity, to get an accurate history of what changed over time, perhaps to better understand what is supported in what. Here is my take, I am pretty sure I got at least 50% of it wrong :-) - pre-Windows 95 era, Word, Excel and Powerpoint use their own vector drawing layer used to draw shapes, pictures, diagrams, art and charts. Powerpoint, acquired by Microsoft in 1987, has by far the advanced drawing layer (bi-linear gradients, opacity, ...), codenamed Escher (in reference of the famous mathematician). - In Office 95, it is decided to reuse the Powerpoint vector graphics layer in Word and Excel. Migration begins. - Migration ends with Office 97 where both Word, Excel and Powerpoint use the same vector graphics layer, publicly known as MSO (mso97.dll) - In Office 2000, it's all craze about internet and Word tries to export WYSIWYG html. For that end, mark up extensions must be added to account for the MSO drawing layer. Hence the VML (Vector Markup language). Excel and Powerpoint don't support it. Internet Explorer natively supports VML (Internet Explorer's Direct animation vector drawing layer dismissed for performance reasons). - In Office XP, VML migration ends and both Word, Excel and Powerpoint support VML whenever a document is saved as a "Single web page archive" (.mhtml extension). - In Office 2003, nothing changes. - In Office 12, MSO gets rewritten with backwards compatibility in mind. The vector drawing layer uses more sophisticated drawing functionalities which makes it easier to draw themed, 3D realistic  objects. Technically, the differences are akin to the differences between GDI and GDI+. This new shared library is known as E2O and the corresponding mark up language is known as Drawing ML (Ecma TC45 specs). - In Office 14, ??? perhaps the drawing layer is rewritten, again, to 1) use WPF 2) to allow plugins, hence enabling much more sophisticated do-it-yourself scenarios. Use cases : custom charts ; BI analysis tools. Stephane Rodriguez

Standards-Based Interoperability

05 June 09

Interoperability without Standards

Firstly it is a back end to what most people would traditionally think of as "Microsoft Office", i.e. the suite of desktop tools (Word, PowerPoint, Excel and so on). In this respect, it acts as a hub for collaboration, document storage/sharing, search and a range of other functions. However, SharePoint can also be used independently of the Office desktop components as a very respectable and capable portal environment for serving up either native .Net or composite applications to users through a browser.

A week or so ago, I published a podcast at IT Conversation with Scott Mace interviewing Gary Edwards about OpenDocument. Edwards is the president of the OpenDocument Foundation. OpenDocument Foundation is a non-profit that works to promote the OpenDocument file format–an XML file format for office documents. There’s no question that businesses want an XML-based file format for office data. The question, naturally, is which XML-based file format. Microsoft has it’s own XML-based file format called OpenXML.