UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549


                                SCHEDULE 13G


                  UNDER THE SECURITIES EXCHANGE ACT OF 1934

                      (AMENDMENT NO.         1   )
                                      -----------

                               TRANSACTION SYSTEMS ARCHITECTS, INC.
- -------------------------------------------------------------------------------
                              (Name of Issuer)


                                Common Stock
- -------------------------------------------------------------------------------
                       (Title of Class of Securities)

                                  89341610
                             ------------------
                               (CUSIP Number)

                               AS OF MARCH 31, 1998

The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).

                            Page 1 of 10 pages


CUSIP No. 89341610                 13G                       Page 2 of 10 Pages
          --------                                               ---   ---

- --------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS.             Provident Investment Counsel, Inc.
    S.S. OR I.R.S. IDENTIFICATION
    NOS. OF ABOVE PERSONS


- -------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER   (a)    / /
    OF A GROUP*                             (b)    / /
- -------------------------------------------------------------------------------
(3) SEC USE ONLY

- -------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION    Massachusetts

- -------------------------------------------------------------------------------
NUMBER OF SHARES             (5) SOLE VOTING POWER                  948761
BENEFICIALLY
OWNED BY                    ----------------------------------------------------
EACH REPORTING               (6) SHARED VOTING POWER                      0
PERSON WITH
                            ----------------------------------------------------
                             (7) SOLE DISPOSITIVE POWER             1040771

                            ----------------------------------------------------
                             (8) SHARED DISPOSITIVE POWER                 0

- -------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   1040771

- -------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- -------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)                 3.9%

- -------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*                                        CO, IA

- -------------------------------------------------------------------------------


                            Page 2 of 10 pages


CUSIP No. 89341610                 13G                       Page 3 of 10 Pages
          --------                                               ---   ---

- -------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS.                      Robert M. Kommerstad

    S.S. OR I.R.S. IDENTIFICATION
    NOS. OF ABOVE PERSON                      (Mr. Kommerstad is no longer a
                                              reporting person. See Item 2.)

- -------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER (A)     / /
    OF A GROUP*                           (B)     / /
- -------------------------------------------------------------------------------
(3) SEC USE ONLY

- -------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION          U.S.A.

- -------------------------------------------------------------------------------
NUMBER OF SHARES             (5) SOLE VOTING POWER                 0
BENEFICIALLY
OWNED BY                    ----------------------------------------------------
EACH REPORTING               (6) SHARED VOTING POWER               0
PERSON WITH
                            ----------------------------------------------------
                             (7) SOLE DISPOSITIVE POWER            0

                            ----------------------------------------------------
                             (8) SHARED DISPOSITIVE POWER          0

- -------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0  IA OWNS
    1040771 SHARES OF COMMON STOCK.  MR. KOMMERSTAD IS NO LONGER A REPORTING
    PERSON.

- -------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- -------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)          0%

- -------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*  Mr. Kommerstad is no longer a reporting
     person.  See Item 2.

- -------------------------------------------------------------------------------


                             Page 3 of 10 pages


ITEM 1.

    (a) NAME OF ISSUER: TRANSACTION SYSTEMS ARCHITECTS, INC.

    (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
        224 S 108Th Ave, Omaha, NE 68154

ITEM 2.

    (a) NAME OF PERSON FILING: This statement is being filed by (i) Provident
Investment Counsel Inc., a Massachusetts corporation and registered investment
adviser ("IA"), and (ii) Robert M. Kommerstad, a shareholder of IA's
predecessor, Provident Investment Counsel, a California corporation which was
formerly a registered investment adviser ("Former IA").  IA is continuing the
business of Former IA, and is a wholly-owned subsidiary of United Asset
Management Holdings, which is wholly owned by United Asset Management
Corporation ("UAM").  Pursuant to an Acquisition Agreement by and among UAM,
Former IA and IA, IA acquired substantially all of the assets of Former IA on
February 15, 1995.  (the "Acquisition").

     IA's beneficial ownership of the Common Stock is direct as a result of IA's
discretionary authority to buy, sell, and vote shares of such Common Stock for
its investment advisory clients.  Mr. Kommerstad, as a result of the
Acquisition, no longer has beneficial ownership of any of the common stock, and
is no longer a reporting person.

    (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

        IA's Principal Business Office is located at:

              300 North Lake Avenue, Pasadena, CA 91101-4022.


    (c) CITIZENSHIP:

        IA is a Massachusetts corporation.

    (d) TITLE OF CLASS OF SECURITIES:

        Class A Common Stock

                             Page 4 of 10 pages


    (e) CUSIP NUMBER:

        89341610

ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b),
         CHECK WHETHER THE PERSON FILING IS A :

    (a) / / Broker or Dealer registered under Section 15 of the Act

    (b) / / Bank as defined in section 3(a) (6) of the Act

    (c) / / Insurance Company as defined in section 3(a) (19) of the Act

    (d) / / Investment Company registered under section 8 of the Investment
            Company Act

    (e) /X/ Investment Adviser registered under section 203 of the Investment
            Advisers Act

    (f) / / Employee Benefit Plan, Pension Fund which is subject to the
            provisions of the Employee Retirement Income Security Act of 1974
            or Endowment Fund; see Section 240.13d-1(b) (1) (ii) (F)

    (g) / / Parent Holding Company, in accordance with Section
            240.13d-1(b) (ii) (G) (Note: See Item 7)

    (h) / / Group, in accordance with Section 240.13d-1(b) (ii) (H)

ITEM 4.  OWNERSHIP

    (a) AMOUNT BENEFICIALLY OWNED: IA directly beneficially owns 1040771
        shares of Common Stock.

    (b) PERCENT OF CLASS:  3.9%

    (c) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:

          (i)    sole power to vote or to direct the vote:

                      IA has the power to vote 948761 shares.  No other
                      person has the power to vote such shares.

                      IA has no power to vote 92010 shares for which it has
                      dispositive power.

         (ii)    shared power to vote or to direct the vote:  0

                             Page 5 of 10 pages


        (iii)    sole power to dispose or to direct the disposition of:

                      IA has the power to dispose all 1040771 shares for which
                      it has direct beneficial ownership.  It does not share
                      this power with any other person.

         (iv)    shared power to dispose or to direct the disposition of:    0

ITEM 5.   OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

          As a result of the Acquisition, Mr. Kommerstad no longer owns any of
          the common stock.  See Item 2 above.  IA's beneficial ownership is
          described in Item 4 above.

ITEM 6.   OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON

          IA, a registered investment adviser, has the right or the power to
          direct the receipt of dividends from Common Stock, and to direct the
          receipt of proceeds from the sale of Common Stock to IA's investment
          advisory clients.  No single investment advisory client of IA owns
          more than 5% of the Common Stock.

ITEM 7.   IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
          THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY

          Not applicable.

ITEM 8.   IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

          Not applicable.

ITEM 9.   NOTICE OF DISSOLUTION OF GROUP

          Not applicable.

                             Page 6 of 10 pages


ITEM 10.   CERTIFICATION

           By signing below I certify that, to the best of my knowledge and
           belief, the securities referred to above were acquired in the
           ordinary course of business and were not acquired for the purpose of
           and do not have the effect of changing or influencing the control of
           the issuer of such securities and were not acquired in connection
           with or as a participant in any transaction having such purposed or
           effect.

                             Page 7 of 10 pages


                                 SIGNATURE

           After reasonable inquiry and to the best knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

APRIL 10, 1998

                      PROVIDENT INVESTMENT COUNSEL, INC.



By:  /s/ Aaron Eubanks
- --------------------------
Aaron Eubanks
Vice President - Operations


                             Page 8 of 10 pages