What It Is and What It Isn't
XML and its related technologies certainly have made their mark in the IT world and will no doubt continue to transform the industry. But it is not and never has been a single solution to all of IT's data interchange ills. Applications must have some knowledge of the data being interchanged to be able to use it, and often proper use of that knowledge involves subtleties in the data that must be managed in the application. Semantics issues (e.g., closing date, date of closing, and closed date may or may not mean the same thing), data formatting issues, and locale issues are just some of the problems that are not solved by the XML standard.
XML is also not HTML. HTML is an Standard Generalized Markup Language (SGML) ...
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