anchor.diff:          rt_files = lcl_serialize_doma=>serialize( is_item ).
         WHEN 'DTEL'.
           rt_files = lcl_serialize_dtel=>serialize( is_item ).
  -      WHEN 'CLAS'.
  +      WHEN 'CLAS' OR 'INTF'.
           rt_files = lcl_serialize_clas=>serialize( is_item ).
         WHEN 'FUGR'.
           rt_files = lcl_serialize_fugr=>serialize( is_item ).
  
positive.code: 
  * todo, refactoring
      CASE iv_type.
        WHEN 'CLAS'.
          CALL FUNCTION 'RS_INACTIVE_OBJECTS_IN_OBJECT'
            EXPORTING
              obj_name         = lv_obj_name
  
negative.code:                       it_files = it_files
                        io_xml   = lo_xml ).
  
      IF is_item-obj_type = 'CLAS'.
        deserialize_textpool( is_item = is_item
                              io_xml  = lo_xml ).
      ENDIF.
  
      deserialize_docu( is_item = is_item
                        io_xml  = lo_xml ).
  