<schema xmlns=“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>