PB138 — Pattern based schemata Schematron • Schema language based on patterns instead of grammar • Suitable for more "relaxed" markups, where it is enough to specify the schema only "roughly" by setting some rules, not exact grammar exhaustively • Schematron home page Examplotron • Examplotron was an experiment to define markup model by just giving example(s) of valid document(s) • The "example document" is converted to a RelaxNG schema and then the normal RelaxNG validation can be done. • Not widely used but simple to use with no major ostacles. • Examplotron home page 1