Hello, I have an xml schema grammar file (xsd) with embedded iso schematron rules. When I modify an instance file, the only way to get a full validation (xsd + embedded schematron) is to select "External Validation": *Information Window*: [09:18:18] - XMLSchema XML Error Scanner - start scanning file:/D:/wip/operators.xml with schema(s): file:/D:/wip/operators.xsd [09:18:18] - Found 0 problem(s) [09:18:18] - Schematron Error Scanner - start scanning file:/D:/wip/operators.xml with schema(s): file:/D:/wip/operators.xsd [09:18:18] - Found 0 problem(s) The standard validator (automatically running when I modify the instance document) seems to ignore embedded schematron rules: *Information Window*: [09:20:23] - SaxonSA Error Scanner - start scanning file:/D:/wip/operators.xml [09:20:23] - Ended I have tried to link the xml file and its schema by: - defining the schema in the instance file, with a {http://www.w3.org/2001/XMLSchema-instance}schemaLocation attribute - defining a document type association. I cannot find a way to configure oxygen to always use the full validation (xml schema + embedded schematron). Any idea ? Thanks for your replies Vincent De Groote