$VAR1 = [
          bless( {
                   'identifierType' => bless( {
                                                'summary' => 'Asset tag of the system',
                                                'label' => 'Asset Tag',
                                                'key' => 'AssetTag'
                                              }, 'ElementDescription' ),
                   'identifierValue' => ' unknown'
                 }, 'HostSystemIdentificationInfo' ),
          bless( {
                   'identifierType' => bless( {
                                                'summary' => 'OEM specific string',
                                                'label' => 'OEM specific string',
                                                'key' => 'OemSpecificString'
                                              }, 'ElementDescription' ),
                   'identifierValue' => 'Dell System'
                 }, 'HostSystemIdentificationInfo' ),
          bless( {
                   'identifierType' => bless( {
                                                'summary' => 'OEM specific string',
                                                'label' => 'OEM specific string',
                                                'key' => 'OemSpecificString'
                                              }, 'ElementDescription' ),
                   'identifierValue' => '5[0000]'
                 }, 'HostSystemIdentificationInfo' ),
          bless( {
                   'identifierType' => bless( {
                                                'summary' => 'Service tag of the system',
                                                'label' => 'Service tag',
                                                'key' => 'ServiceTag'
                                              }, 'ElementDescription' ),
                   'identifierValue' => 'XXXXXXXX'
                 }, 'HostSystemIdentificationInfo' )
        ];


##</code><code>##

my $add_info = $host_view->summary->hardware->otherIdentifyingInfo;

##</code><code>##

foreach (@$add_info) {
  if (  $_->identifierType->key eq "ServiceTag" ) {
     print $_->_identifierValue , "\n" ;
  }
}