|| $self->ut_alphan('serial')
|| $self->ut_alphan('smartcard')
|| $self->ut_foreign_keyn('statusnum', 'hardware_status', 'statusnum')
|| $self->ut_alphan('serial')
|| $self->ut_alphan('smartcard')
|| $self->ut_foreign_keyn('statusnum', 'hardware_status', 'statusnum')