RE: [XML Schema 1.1] No changes to derive-by-restriction, right? (just a simplification of its description in the specification)

> 
> Derive-by-restriction behaves the same in 1.1 as in 1.0, right?
> 
> The only change is a simplification of its description in the 
> specification, right?
> 

The 1.0 specification gave detailed rules for what restrictions were
legitimate, and these rules prohibited some restrictions that were perfectly
reasonable. The 1.1 specification avoids giving detailed rules, and
therefore avoids these problems.

This rather puts the onus on the implementor to devise their own rules, and
of course there's a risk they'll get some corner cases wrong - but that's
better than requiring them to implement bugs enshrined in the spec.

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay