I would add a fourth:
(d) DTD is an anachronism - a response to a pre-XSD situation.
DTD has no perspective of further development. Technology has taken another path (XSD, and DTD-agnostic XDM as the foundation of XML processing). I think the main reason for DTD usage is inertia.
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Michael Kay <> schrieb am So, 16.2.2014:
I avoid DTDs if I can for three reasons:
(a) I can never remember the syntax
(b) I can never understand the errors when I get it wrong
(c) they don't survive XSLT transformation.
Michael Kay
Saxonica
