It would be nice to have <systemitem class="securitycontext"> to describe things like roles, permissions and security tokens. For example:
John is the system administrator for the accounts department of a company. All the virtual resources for his department are organized under a Red Hat Enterprise Virtualization <systemitem>cluster</systemitem> called <literal>accounts</literal>. He is assigned the <systemitem class="securitycontext">ClusterAdmin</systemitem> role on the accounts cluster.