On Tue, 2012-08-28 at 20:20 +0000, Costello, Roger L. wrote:
> Is there ever a time when it is okay to create an XML application that
> checks for a specific prefix,
In an XML environment - no.
In other environments - sometimes. For example, HTML 5 (not based on
XML) can say things about specific prefixes if it likes.
Liam
--
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
The barefoot typographer - http://www.holoweb.net/~liam/
Co-author, 5th edition of "Beginning XML", Wrox, July 2012