RE: performance testing of schemas

> My experience is that schema 'compilation' completely swamps 
> schema-based
> 'validation', so the first thing to do in any performance testing is
> to separate these two phases.

With this in mind I've been thinking about "lazy" or incremental compilation
of schemas, to avoid compiling the parts that aren't used in a particular
validation episode.

Is it conformant to use a schema for validating instances without reporting
the errors that appear in unused parts of the schema?

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