examples/workspace/org.eclipse.egf.example.strategy.modeldriven/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin>

   <extension
         point="org.eclipse.egf.core.fcore">
      <fcore
            id="default.fcore">
      </fcore>
      <fcore
            id="model/mypackage.fcore">
      </fcore>
      <fcore
            id="extension.fcore">
      </fcore>
      <fcore
            id="validation.fcore">
      </fcore>
   </extension>

</plugin>