This is the HTML view of the schema used for schematron.
This is the relax-ng (xml version) of the Schema. The standard contains a relax-ng (rnc format) version if needed.
The schema provided for SVRL extends the informative version in the standard. The reason for this is to allow all the decorative markup in the standard to be passed through to the report file as XML for further processing. Since I can't guess what users will want from the report, it is left as XML for you to use as you wish.
Just note that this schema differs from the rnc version provided in the standard.