RELAX NG vs DTD: Sad Statistics

[Divine Dandelion℠ <divine.dandelion.sm@gmail.com>]

(Probably, the discussion I proposed in this post seems too scholastic, but it is still close related to DocBook tools and, as I hope, will be able to discover some serious problems.)

1. DocBook XML V5.0 was released two and a half years ago.

> "Schemas for DocBook 5.0 are available in several formats, but only RELAX NG schema is normative and thus preferred. Other schemas are not fully RELAX NG compatible and provided as a convenience for using with legacy tools." [Norman Walsh, DocBook 5: The Definitive Guide]

2.  DocBook XSLT Stylesheets 1.77.0 was released two weeks ago.

Download statistics (http://sourceforge.net/projects/docbook/files/):

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docbook-xsl-ns (RELAX NG) -  30 696 downloads (8.5%)

docbook-xsl (DTD)               - 329 401 downloads (91.5%)

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Total:                                  - 360 097 downloads (100%)

Only 8.5% of users have transited to RELAX NG, the rest are still stuck to "old-fashioned" DTD. Not too brilliant result for 2.5 years, is it?

Why? What prevents transition to the new functionality of DocBook 5? Any idea?

-- 
Regards,

Ivan Zaporozhets

Divine Dandelion℠ Online Publishing Service

http://divinedandelion.blogspot.com/