Schematron tips:

 
I have a W3C schema written for my xml and i am using a xerces parser to
validate the xml using the schema associated with it. Everything works
fine. Now in my schema, i want to add some schematron rules. I added the
rules inside the xs:appinfo element inside the schema. But my  xerces
parser doesnt seem to even bother about the schematron rules and the
schematron rules specified are not even validated. It seems like it is
not executing the schematron rules. I checked the schematron website to
see if i need anything. it doesnt seem to be obvious. What am i missing
here? do i need any files to work with schematron? Does xercesJ parser
2.5 version support schematron validation? Please provide me some
insight so that i can get a simple schematron rule within a schema get
validated.
 
Thanks
sriram