plugins/org.eclipse.app4mc.validation.core/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension-point id="org.eclipse.app4mc.validation.profile" name="org.eclipse.app4mc.validation.profile" schema="schema/org.eclipse.app4mc.validation.profile.exsd"/>

</plugin>