Challenges: Some Ugly Truths
The challenges of building—and living with—an XML workflow are clear enough. The return on investment is a long-term proposition.
Regardless of the benefits XML may provide, the starting reality is that it represents a very different way of doing things than the one we are familiar with. The Word Processing and Desktop Publishing paradigm, based on the promise of onscreen, WYSIWYG layout, is so dominant as to be practically inescapable. It has proven really hard to get from here to there, no matter how attractive XML might be on paper.
A considerable amount of organizational effort and labour must be expended up front in order to realize the benefits. This is why XML is often referred to as an “investment”: you sink a bunch of time and money up front, and realize the benefits—greater flexibility, multiple output options, searching and indexing, and general futureproofing—later, over the long haul. It is not a short-term return proposition.
And, of course, the returns you are able to realize from your XML investment are commensurate with what you put in up front: fine-grained, semantically rich tagging is going to give you more potential for searchability and recombination than a looser, more general-purpose approach, but it sure costs more. For instance, the Text Encoding Initiative (TEI) is the grand example of pouring enormous amounts of energy into the up-front tagging, with a very open-ended set of possibilities down the line. TEI helpfully defines a level to which most of us do not have to aspire.[5]
But understanding this on a theoretical level is only part of the challenge. There are many practical issues that must be addressed. Software and labour are two of the most critical. How do you get the content into XML in the first place? Unfortunately, despite two decades of people doing SGML and XML, this remains an ugly question.
Gary Edwards on 23 Jan 08This OASIS ODF discussion is about the Compliance - conformance clause of the ODF specification: Section 1.5. A developer has complained that use of MAY instead of MUST in the wording of the clause would enable conforming applications to destroy foreign elements and alien attribute markup at will. This of course would result in ZERO Interoeprability!!!!! The foreign elments and alien attributes were included for the purposes of improved ODF compatibility with the billions of MSOffice binary documents that would need to be converted to ODF. Sadly, the section 1.5 loop hole falls short of the compatibility goal, but that only begins to scratch the surface of the ODF problems. OpenOffice only supports foreign elements and alien attributes for text spans, and paragraphs!!!!!! All other such markup is unrecognized and therefore "destroyed" by OpenOffice. ZERO interop. No roundtripping with MSOffice desktops. Lossy conversion with jagged fidelity. Guaranteed.
