[Offtopic]: About XML Schemas

There recently was a question regarding XML Schemas, such as what XML
schema to use etc.

I would like to encourage you to read --
http://www.extrememarkup.com/extreme/2001/extremeweb/typeset-pdf/p0012.pdf

this will give a clear understanding of different xml schema languages.

I hope you find it useful.

regards - murali.