<schema xmlns="http://www.ascc.net/xml/schematron" >
     <pattern name="Print both cases">
          <rule context="AAA">
               <assert test="BBB">BBB element is missing.</assert>
               <report test="BBB">BBB element is present.</report>
               <assert test="@name">AAA misses attribute name.</assert>
               <report test="@name">AAA contains attribute name.</report>
          </rule>
     </pattern>
     <pattern name="Print positive result only">
          <rule context="AAA">
               <report test="BBB">BBB element is present.</report>
               <report test="@name">AAA contains attribute name.</report>
          </rule>
     </pattern>
     <pattern name="Print negative result only">
          <rule context="AAA">
               <assert test="BBB">BBB element is missing.</assert>
               <assert test="@name">AAA misses attribute name.</assert>
          </rule>
     </pattern>
</schema>