Using Perform of one program in Another program

Example :

  PERFORM f_add_ser_cond IN PROGRAM znm_sc_r_qn_erro_disp IF FOUND
                            TABLES    i_cond2
                                      t_serialno
                                      lt_sernr
                            USING     matnr
                                      vwerk
                                      aufart
                                      repos
                             CHANGING lv_flag.